1902 Encyclopedia > Phrenology


PHRENOLOGY. This name was given by Forster in 1815 to the empirical system of psychology formulated by Gall and developed by his followers, especially by Spurzheim and Combe. At first it was named "cranioseopy," "craniology," "physiognomy," or "zoonomy," but Forster’s name was early adopted by Spurzheim, and became that whereby the system is now known. The principles upon which it is based are four: (1) the brain is the organ of 'the mind; (2) the mental powers of man can be analysed into a definite number of independent faculties; (3) these faculties are innate, and each has its seat in a definite region of the brain; (4) the size of each of these regions is the measure of the power of manifesting the faculty associated with it. While phrenology is thus, on the one hand, a system of mental philosophy, it has a second and more popular aspect as a method whereby the disposition and character of the individual may be ascertained. These two sides of the subject are distinct from each other, for, while it can only serve as a reliable guide for reading character on the assumption of its truth as a philosophic system, yet the possibility of its practical application does not necessarily follow from the establishment of the truth of its theoretic side.

History.—That the phenomena of mind are in some measure connected with the action of the brain has been recognized from a very early age of philosophy. It is true that Aristotle [Footnote 842-2] describes the brain as the coldest and most bloodless of bodily organs, of the nature of water and earth, whose chief purpose is to temper the excessive heat of the heart, as the cooler regions of the firmament condense the vapours rising from the earth. In his view, as in that of most of the earlier writers of other nations of antiquity, the heart is the seat of life ; to it, not to the brain, the Hebrew writers refer thoughts and affections, while they considered judgment as seated sometimes in the head, sometimes in the kidneys. [Footnote 842-3] This was, likewise, the teaching of the ancient Egyptian philosophy; and hence, while many rites were practised and many prayers offered for the preservation of the heart of the deceased, the brains were passed over with very little precaution for their preservation. [Footnote 842-4] The influence of the Aristotelian teaching is traceable in that of some of the earlier classic writings on philosophy, as is that of the Hebrews in our own colloquial language; but we learn from Diogenes Laertius [Footnote 842-5] that much more accurate physiological views were held by Pythagoras, who believed the mind and the intellect to have their seat in the brain. The theory of Hippocrates was Pythagorean rather than Aristotelian, for, although in one passage in his work De Corde he expresses himself rather doubtfully, yet elsewhere he clearly states that he considers the brain to be the index and messenger of the intellect. [Footnote 842-6] The cerebral seat of sense-perception is also taught by Plato, [Footnote 842-7] who puts into the mouth of Socrates the theory that the brain is the organ affected by the senses, whereby memory and opinion arise, and from whence knowledge springs. The classic poets also notice this dependence of mind on brain; for example, in the Clouds (v. 12 7 6) Strepsiades accuses Amynias of not being in his right mind, and, on being asked why, responds, "You seem to me as if you had had a concussion of the brain."

The two founders of anatomical science, Erasistratus and Herophilus, who lived in the days of Ptolemy Soter, taught not only that the brain was the seat of sensation and of intellect, but also that there was therein a certain degree of localization of function. Erasistratus believed that the sensory nerves arose from the brain-membranes, the motor from the cerebral substance. Herophilus was apparently the first who held that the vital forces resided in and circulated from the ventricles of the brain, at least so we gather from Celsus and the other authors who have preserved his views. By the influence of the writings of Galen, [Footnote 842-8] which directly teach that the brain is the seat of soul and intellect, the Pythagorean doctrine became universally received among philosophers. According to the Galenical theory of life, the animal spirits arising from the brain are conveyed thence by the arteries through the body. These animal spirits have their origin in the ventricles of the brain, and pass thence to the heart. It is true that in one place (viii. 159) he refers their origin to the cerebral substance, but the ventricular theory was that adopted by his followers. This view is held by the Greek physicians, [Footnote 843-1] some of whom even speculated on the relation of the intellect to the shape and size of the head. The Arabians adopted the same hypothesis, so we find Averrhoes [Footnote 843-2] correcting Aristotle’s notion of cerebral physiology in favour of Galen’s view. Rhazes [Footnote 843-3] also extended this by giving a sketch of a scheme of psychic localization; and Avicenna [Footnote 843-4] added to the regions recognized by previous authors by interpolating one of his own. Such of the early Christian authors as had occasion to refer in their writings to the relation of soul to body naturally adopted the teaching of Galen, and suited it to their theology, thereby conferring on it an importance which rendered correction difficult. Thomas Aquinas [Footnote 843-5] thus expresses his acquiescence in the theory of localization, as also in a sense does Tertullian.[Footnote 843-6]

Early in the 13th century Albertus Magnus [Footnote 843-7] gave a detailed description of the distribution of mental and psychical faculties in the head. The anterior region he assigned to judgment, the middle to imagination, and the posterior to memory. A somewhat similar allocation was made by Gordon, professor of medicine in Montpellier (1296), [Footnote 843-8] who assigned common sensation and the reception of impressions to the anterior cornua of the lateral ventricles, phantasia to the posterior, this power being two-fold (imaginativa and cogitativa), judgment or Tstimativa to the third ventricle, and memory to the fourth. [Footnote 843-9] Figures of a similar division were given by Petrus Montagnana [Footnote 843-10] and Lodovico Dolce, [Footnote 843-11] still later by Ghiradelli [Footnote 843-12] of Bologna and by Theodore Gall of Antwerp. [Footnote 843-13] That the "vital spirits" resided in the ventricles was doubted by many, and refuted by a few of the anatomists of the 17th century. Bauhin in 1621 [Footnote 843-14] attacked the old view, and Hoffmann of Altorf showed that, as the ventricles were closed cavities, they could not transmit any material fluid. That these spirits existed at all was doubted by Alexander Benedictus,[Footnote 843-15] Plater, [Footnote 843-16] and a few others; but they were believed in by the great majority of 17th and even of 18th century medical writers, many of whom conceived that the ventricles were "somper pleni spiritibus animalibus flammulis similibus, quorum beneficiis intelligimus, sentimus,et movemus" [Footnote 843-17] and the opponents of this view were strongly assailed by Riolan and others as revolutionary. The grey matter of the surface of the cerebrum was first recognized as the true dynamic element by Malpighi [Footnote 843-18] and Willis.[Footnote 843-19] The latter regarded the convoluted surface of the cerebrum as the seat of the memory and the will, the convolutions being intended to retain the animal spirits for the various acts of imagination and memory. Imagination he described as seated in the corpus callosum, sense-perception in the corpus striatum, and impetus et perturbatio in the basal parts of the cerebrum above the crura. The thalami he regarded as the centres of sight and the cerebellum of involuntary acts. Columbus [Footnote 843-20] ridiculed the idea that the convoluted surface can have anything to do with intellect, as the ass, a proverbially stupid animal, has a convoluted cerebrum. According to his view, the convolutions are for the purpose of lightening the brain and facilitating its movements. Succeeding anatomists simply varied these localizations according to their respective fancies. Lancisi placed sense -perception in the corpus callosum, Vieussens in the centrum ovale majus. Descartes supposed the soul to be seated in the pineal gland, Lotze in the pons Varolii. [Footnote 843-21] Meyer considered abstract ideas to arise in the cerebellum, and memory to have its seat at the roots of the nerves. [Footnote 843-22]

Of later writers three deserve special notice as having largely prepared the way for the more modern school of phrenology. Unzer of Halle in his work on physiology extended the pre-existing theories of localization. Metzger, [Footnote 843-23] twenty years before the publication of Prochaska’s work, bad proposed to make a series of observations on the anatomical characters of the brains of persons of marked intellectual peculiarity; but it is not known to the present writer whether he ever carried this into effect. In a more special manner Prochaska of Vienna may be looked upon as the father of phrenology, as in his work on the nervous system, published in Vienna in 1784, are to be found the germs of the later views which were propounded in that city twelve years later. [Footnote 843-24]

The system formulated by Gall is thus a modern expansion of an old empirical philosophy, and its immediate parentage is easily traced, Although, according to Gall’s account, it arose with him as the result of independent observations. These, he tells us, he began to make at an early age, by learning to correlate the outward appearances and mental qualities of his schoolfellows. [Footnote 844-1] Gall’s first published paper was a letter in the Deutscher Merkur of December 1798, but his principal expositions were oral, and attracted much popular attention, which largely increased when, in 1802, he was commanded by the Austrian Government, at the instance of the ecclesiastical authorities, to discontinue his public lectures. In 1804 he obtained the co-operation of Spurzheim (1776-1832), a native of Longwich near Treves, who became his pupil in 1800, and proved a powerful ally in promulgating the system. Master and pupil at first taught in harmony, but they found it advisable to separate in 1813; and we find Spurzheim, several years after their parting, declaring that Gall had not introduced any new improvements into his system since their separation (notes to Chenevix, p. 99). "My philosophical views," he also says, "widely differ from those of Gall."

In Paris, where he settled in 1807, Gall made many influential converts to his system. Broussais, Blainville, Cloquet, Andral, Geoffroy St-Hilaire, Vimont, and others warmly attached themselves to it, and countenanced its progress. Gall visited Great Britain, but the diffusion of phrenology there was chiefly due to Spurzheim, who lectured through the country and through America, and, with the aid of his pupil George Combe, soon attracted a large popular following. His most influential disciples were Elliotson, Andrew Combe, Mackenzie, Macnish, Laycock, and Archbishop Whately, and in America Caldwell and Godman. On the opposite side many influential men took up a strongly antagonistic position, prominent among whom were Barclay the anatomist, Roget, Sir Charles Bell, Sir W. Hamilton, Jeffrey, Brougham, T. Brown, and Sir B. Brodie. The nature of the system rendered it eminently fitted to catch public attention, and it rapidly attained to so great a degree of popularity that in 1832 there were twentynine phrenological societies in Great Britain, and several journals devoted to phrenology in Britain and America; of these the Phrenological Journal, a quarterly edited chiefly by George Combe with aid from others of the Edinburgh confraternity, notably Sir George Mackenzie and Macnish, "the modern Pythagorean," lived from 1823 to 1847, through twenty volumes. The controversy in many places was heated and often personal, and this largely increased the popular interest. In the Edinburgh Review the theory was severely criticized by Thomas Brown, and afterwards in a still more trenchant manner by Jeffrey. In Blackwood it was ridiculed by Professor Wilson. Being a subject which lent itself easily to burlesque, it was parodied cleverly in a long rhyme by two authors, "The Craniad," 87 pages long, published in 1817, while, on the other hand, verse was pressed into its service in the rhyme "Phrenology in Edinburgh" in 1824. [Footnote 844-2] The best defence of the system was that by Chenevix in the third number of the Foreign Quarterly, afterwards reprinted with notes by Spurzheim.

The popularity of phrenology has waned, and few of the phrenological societies now survive; the cultivation of the system is confined to a few enthusiasts such as will be found attached to any cause, and some professional teachers who follow phrenology as a vocation. Like many similar systems, it has a much larger following in America than in Europe. Based, like many other artificial philosophies, on an admixture of assumption and truth, certain parts will survive and become incorporated into scientific psychology, while the rest will in due course come to be relegated to the limbo of effete heresies.

The Faculties and their Localities.—The system of Gall was constructed by a method of pure empiricism, and his so-called organs were for the most part identified on slender grounds. Having selected the place of a faculty, he exarnined the heads of his friends and casts of persons with that peculiarity in common, and in them he sought for the distinctive feature of their characteristic trait. Some of his earlier studies were made among low associates, in jails, and in lunatic asylums, and some of the qualities located by him were such as tend to become perverted to crime. These he named after their excessive manifestations, mapping out organs of murder, theft, &c. ; but as this cast some discredit on the system the names were changed by Spurzheim, who claimed as his the moral and religious considerations associated with it. Gall marked out on his model of the head the places of twenty-six organs as round enclosures with vacant interspaces. Spurzheim and Combe divided the whole scalp into oblong and conterminous patches (see the accompanying figures). Other methods of division and other names have been suggested by succeeding authors, especially by Cox, Sidney Smith (not Sydney), Toulmin Smith, Carus of Dresden, Don Mariano Cubi i Solar, Powell of Kentucky, Buchanan of Cincinnati, Hittel of New York. Some, like the brothers Fowler, raise the number of organs to forty-three; but the system of Spurz, heim and Combe is that which has always been most popular in Britain.

Spurzheim separated the component faculties of the human mind into two great groups and subdivided these as follows.

I. Feeling divided into—

1. Propensities, internal impulses inviting only to certain actions.

2. Sentiments, impulses which prompt to emotion as well as to action.

A. Lower.—those common to mail and the lower animals.

B. Higher.—those proper to man.

II. Intellectual faculties.

1. Perceptive faculties.

2. Reflective faculties.

In the following list the locality and the circumstances of the first recognition of the organ are appended to the names, which are mostly the inventions of Spurzheim. Gall’s names are placed in brackets. [Footnote 844-3]


(1) Amativeness (Instinct de la génération), median, below the inion ; first determined by Gall from its heat in an hysterical widow, supposed to be confirmed by many observations, and referred to the cerebellum. [Footnote 844-4]

(2) Philoprogenitiveness (Amour de la progéniture), median, on the squama occipitis, and selected as the organ for the love of children because this part of the skull is usually more prominent in apes and in women, in whom the love of children is supposed to be stronger than in men.

(3) Concentrativeness, below the obelion and over the lambda. This is a region of uncertain function, unnoticed by Gall, but described as Inhabitiveness by Spurzheim, because he found it large in cats and in a clergyman fond of his home. It has since been con. sidered by Combe to be the seat of the power of concentration, whereof he believed Inhabitiveness to be a special case.

(4) Adhesiveness (Amitié), over the lateral convoluted area of the lambdoidal suture. This region was prominent in a lady introduced to Gall as a model of friendship, and is said by him to be the region where persons who are closely attached put their heads together.

(5) Combativeness (Instinct de la défence), above the asterion ; it was found by Gall by examining the heads of the most quarrelsome of his low companions whom he had beforehand stimulated by alcohol. It was verified by comparing this region with the same part of the head of a quarrelsome young lady.

(6) Destructiveness (Instinct carnassier), above the car meatus. This is the widest part of the skulls of carnivorous animals, and was found large in the head of a student so fond of torturing animals that he became a surgeon, also large in the head of an apothecary who became an executioner.

(6a) Alimentiveness, over the temporal muscle and above the ear. Hoppe describes it as being large in a gourmand acquaintance, and he therefore supposes it to be the organ of selecting food.

(7) Secretiveness (Ruse, Finesse), the posterior part of the squamous suture.

(8) Acquisitiveness (Sentiment de la propriété on the upper edge of the front half of the squamous suture. This part of the head Gall noticed to be prominent in the pickpockets of his acquaintance.

(9) Constructiveness (Sew de méchanique), on the stephanion detected by its prominence on the heads of persons of mechanical genius. It was large on the head of a milliner of uncommon taste and on a skull reputed to be that of Raphael.

The organ of Vitativeness, or love of life, is supposed by Combe to be seated at the base of the skull. To this locality Herophilus referred most of the intellectual powers.

Lower Sentiments.

(10) Self-esteem (Orgueil, Fierté), at and immediately over the obelion; found by Gall in a beggar who excused his poverty on account of his pride. This was confirmed by the observation that proud persons held their heads backwards in the line of the organ.

(11) Love of Approbation (Vanité), outside the obelion ; the region in which Gall saw a protuberance on the head of a lunatic who fancied herself queen of France.

(12) Cautiousness (Circonspection) on the parietal eminence; placed here because an ecclesiastic oi hesitating disposition and a vacillating councillor of state had both large parietal eminences.

Superior Sentiments.

(13) Benevolence (Bonté), on the middle of the frontal bone in front of the coronal suture; here Gall noticed a rising on the head of the highly-commended servant of a friend, as well as on a benevolent schoolmate who nursed his brothers and sisters when they were ill. To this spot Xenocrates referred the intellectual powers.

(14) Veneration (Sentiment réligieux), median at the bregma. Gall noted when visiting churches that those who prayed with the greatest fervour were prominent in this region, and it was also prominent in a pious brother.

(15) Conscientiousness, unknown to Gall recognized by Spurzheim usually from its deficiency, and placed between the last and the parietal eminence.

(16) Firmness (Fermeté), median, on the sagittal suture from behind the bregina to the front of the obelion. Lavater first pointed out that persons of determination had lofty heads.

(17) Hope, not regarded as primary by Gall, who believed hope to be akin to desire and a function of every faculty which desires, and left this territory unallocated.

(18) Wonder, said to be large in vision-seers and many psychi researchers. A second similar organ placed between this and the next is called Mysterizingness by Forster, and is said to preside over belief in ghosts and the supernatural.

(19) Ideality (Poésie), noted by Gall from its prominence in the busts of poets ; said to be the part touched by the hand when composing poetry.

(20) Wit (Esprit caustique), the frontal eminence, the organ of the sense of the ludicrous, prominent in Rabelais and Swift.

(21) Imitation (Faculté d’imiter), disposition to mimicry, placed between Benevolence and Wonder.

Perceptive Faculties.

(22) Individuality, over the frontal sinus in the middle line the capacity of recognizing external objects and forming ideas therefrom ; said to have been large in Michelangelo, and small in the Scots.

(23) Form (Mémoire des personnes), capacity of recognizing faces gives a wide interval between the eyes ; found by Gall in a squinting girl with a good memory for faces.

(24) Size, over the trochlea at the orbital edge ; described by Spurzheim and Vimont as the capacity of estimating space and distance.

(25) Weight, outside the last on the orbital edge and, like it, over the frontal sinus. The prominence of ridge here is due to large sinus or a projecting bone. Certain old writers, such as Strato Physicus, located the whole intellect in this ridge.

(26) Colour, also on the orbital edge external to the last.

(27) Locality (Sens de localité), placed above Individuality on each side, and corresponding to the upper part of the frontal sinus and to the region immediately above it.

(28) Number, on the external angular process of the frontal bone, large in a calculating boy in Vienna.

(29) Order, internal to the last, first noted by Spurzheim in an orderly idiot.

(30) Eventuality (Mémoire des choses), the median projection above the glabella, supposed to be the seat of the memory of events.

(31) Time, below the frontal eminence and a little in front of the temporal crest.

(32) Tune (Sens des rapports des tons), on the foremost part of the temporal muscle, where Gall noticed a bulge on the head of a musical prodigy of five.

(33) Language (Sens des mots), behind the eye. This was the first organ noticed by Gall, as a clever schoolfellow, quick at languagoes, bad prominent eyes. Old authors have noted the connexion between prominent eyeballs and mental development; thus Gazzali and Syenensis Medicus Cyprius place the intellect and soul in and behind the eyeballs.

Reflective Faculties.

(34) Comparison (Sagacité comparative), median, at the top of the bare region of the forehead, where a savant friend of Gall’s, fond of analogies, bad a prominent boss.

(35) Causality (Esprit métaphysique), the eminence on each side of Comparison, noticed on the head of Fichte and on a bust of Kant; the seat of the faculty of correlating causes and effects.

The first identification of each organ was made by an induction from very limited data, but the founders and exponents of the system have collected all available instances wherein enlargements of each of these regions coexisted with increased powers of the faculty supposed to reside therein, and in some cases they have discovered coincidences of a surprising nature. When, however, such do not exist, a convenient excuse is found by reference to the indefinite article of temperament, or by a supposed explanation of the faculty in question as not simple but produced by the co-operation of other influences. Thus, as Sheridan’s bump of wit was small, he is said not to have been truly witty, but to have had comparison and memory strongly developed. The girl Labrosse (described in Férussac’s Bulletin for October 1831), who exhibited strong amativeness but had a rudimentary cerebellum, is said to have obliterated it by over-use. Thurtell, a cold-blooded murderer whose organ of benevolence was large, is said to have been generous, as he once gave half a guinea to a friend, &c.

The method whereby the sizes of organs are estimated is arbitrary and the boundaries of the regions indefinite. The attempts of Nicol, Straton, and Wight to devise mechanical and accurate modes of measurement have not been very successful and have not found favour with the professional phrenologist.

Anatomical Aspect of Phrenology.—The phrenological controversy served the useful purpose of stimulating research into the anatomy of the brain; but we owe very little of solid progress to the advocates of the system. Call is the only writer of his creed in whose works original observations of value are to be found. Although the study of the surface of the cerebrum is of the essence of phrenology, yet nowhere in the circle of phrenological literature are the convolutions of the brain accurately described; our knowledge of their order and disposition comes from the morphologist, not from the phrenologist. The first real step towards their systeiatic description was made by Rolando, [Footnote 845-1] who in 1830 described the fissure to which his name is attached, and very little advance was made until the publication in 1856 of Gratiolet’s [Footnote 845-2] and Huschke’s [Footnote 845-3] memoirs. These works for the first time placed the description of the surface of the brain, imperfectly attempted by Desmoulins in 1825, [Footnote 845-4] on a satisfactory basis. Most of the anatomical details contained in the works on phrenology relate to controversial matters of secondary importance, and presuppose the truth of the theory; but even in connexion with these they give us no statistical details of any value. It would be important, for instance, to have tabulated a sufficiently large number of measurements of the relative thicknesses of scalp and skull in different regions, of the variatioris in development of the diploe, of the varying range of the frontal sinus; but of these we find no sufficient nor definite researches in the whole circle of books cited below.

As under ANATOMY (vol. i. P. 874) a careful description of the brain has been given, we need only allude to such anatomical points involved in the examination of phrenology as are not included in that account

1. Any psychological theory which correlates brain-action and mental phenomena requires a correspondence between brain-size and mental power ; and, speaking generally, we find that the brains. of those whose capacities are above the average are larger than those of the general tun of their fellow-men. The details of brain-weights will be found at pp. 879, 880 of the article cited.

2. Direct measuriements of the relative developments of different portions of brains are difficult and troublesome to make; but their importance to phrenologists is so great that it is remarkable that no attempts to obtain any such were made by them. The series given by Wagner of the relative sizes of the cerebral lobes of four brains is almost appended.

From this it appears that the woman exceeded Gauss in perceptive and reflective organs, exceeded Fuchs in sentiment, and fell below the workman in propensities. It must be said, however, that the phrenological divisions do not accurately coincide with the anatomical. Other series constructed along these lines are very much wanted, and it would furnish important physiological data if the brains of men distinguished for special qualities were examined in this or some comparable way.

3. It is important in relation to phrenology to ascertain the constancy of the convolutions. Many varieties in the detail of the surface-patterns have been recorded by Tenchini, Poggi, Giacomini, Rüdinger, and Sernow, [Footnote 845-5] but the general plan is fairly uniform. A still more important question has been recently raised by Langley, viz., how far identical spots on identical convolutions in different brains consist of nerve-cells with precisely the same connexions. The convoluted arrangement results from growth of brain-surface under constraint, hence as the different tracts of surface undergo proportional overgrowth they fold along different lines. The occurrence of small differences in the rate of overgrowth, testified to by the varieties of the resulting pattern, will cause considerable alteration in the place of definite territories of grey cells. Some method for the determination of the limits of these shiftings of place is much required.

4. The comparison of the rate of growth of brain with the development of mental faculties is important not only to the phrenologist but to the psychologist. No observations on this point were made by phrenological writers, and they simply refer to the first and rather crude observations of the earlier anatomists. We have, however, recently learned from the researches of Bischoff, Tuczec, and Exner [Footnote 845-6] many particulars as to the rate and progress of brain-growth. At birth the brain weighs one-tenth of the weight of the body, and averages about 11 ounces. For the first year brain-growth and consequently expansion of the skull proceed with great rapidity, the growth during a large part of this period averaging one cubic centimetre daily. This enormous increase is chiefly due to the rapid development of medullated nerve-fibres, which are deficient in the foetal brain. During the second and third years growth takes place more slowly, the occipital and parietal lobes increasing more than the frontal or temporo-sphenoidal. During these and the fonr succeeding years the base elongates commensurately with the increasing depth of the face. In the sixth and seventh years the frontal lobes grow faster than the parietals, and at seven the average brain has attained the weight of 1340 grammes, being to the weight of the body as 1:20. In the period between seven years and puberty growth is slight, but at puberty the whole brain grows actively, especially the frontal lobes. This activity lasts until about eighteen years of age, then diminishes; but the average brain does not reach its maximum size until about thirty, from little after which period the brain tends to diminish towards senility.7 These measurements illustrate the relation between brain-growth and mental development, but are as easily explicable on any psychological theory of brain-action as on the phrenological. The relation supposed by Davaine to subsist between development of the brain and stature is not borne out by statistics.8

5. The estimation of the relative development of grey and white matter in the several lobes is important to any theory of cerebral dynamics which allocates functions specifically diverse to each separate part of the brain-surface; but no attempt has been made by

the, phrenologist to obtain precise results in this direction, nor even to determine the physical constants of the two forms of brain-matter. The recently-introduced method of Bourgoin and Danilewski, based upon the differing specific gravities of grey and white matter, promises to give definite information as to the relative amounts of these forms of brain-matter ; but further experiments are needed to perfect the method.9

6. The relations, if any, between the alterations which take place in the shape and position of the head and alterations in brain-surface have been speculated on by the phrenologist. Broussais is reported to have said that his organ of causality had enlarged with increasing use, and a list of cases of similar alterations of head-shape is given by Deville (Phren. Jour., xiv. 32), most of which are simply age changes, or the kind described by Professor Cleland (Phil. Trans., 1870). There are no exact measurements recorded which indicate the occurrence of topical increases of a normal brain in special directions coincident with the cultivation of definite faculties. All the so-called cases are given vaguely, with no measurements, and the careful measurements of George Combe in such cases as were available to him showed no appreciable alterations in adult heads even at long intervals of time (see also Andrew Combe, Phren. Journ. x. 414).

7. The phrenological want of knowledge of the topography o f the brain-surface was necessarily correlated with ignorance of the exact relations of the convolutions to the interior of the cranial bones; these have been carefully worked out by Huschke, Heffier, Turner, and Reid. Some latitude, however, must be allowed in topography, as the exact relation of convolution to skull varies with the shape of the skull. Giacomini showed that the fissure of Rolando is perceptibly farther back from the coronal suture in dolichocepbalic than in brachycephalic skulls, and it is still farther back in the extreme boat-shaped form of long-headedness. Passet shows that there is a slight topographical difference in the two sexes (Arch. f. Anthrop., 1882, xiv. 89), and in the heads of those with unsymmetrically-shaped skulls there is often a want of lateral symmetry of convolution. Artificial deformations likewise alter the topographical relations of convolutions, and have served not a little to puzzle the phrenologist. Thus, the artificial dolichocephaly of the Caribs having bulged the squama occipitis, they decided that these people must be amiable lovers of children, [Footnotes 847-1] &c.

8. The existence of structural differences between different areas of cerebral surface is important to any theory of cerebral localization, but no phrenologist has given us any original information on this point. Since the investigation of Baillarger, [Footnotes 847-2] has been shown that some local differentiations of structure do really exist. Thus in the convolutions around the fissure of Rolando the ganglion-cells of the fourth layer are of large size (giant-cells of Betz), and in the convolutions of the temporo-sphenoidal lobe of a layer of small angular cells (granule-cells) is interposed between the arger pyramidal and the ganglion-cells, so that, while in the parts of the brain above the fissure of Sylvius the grey cortex is for the most part five-layered, below and behind that fissure it is six-layered. There is no abrupt passage from the one to the other, the only sudden transition of structure of the grey cortex being at the hippocampal sulcus ; and giant-cells, although of smaller size, and less like those of the anterior cornu of the spinal cord, are scattered over other parts of the cerebral grey matter. [Footnotes 847-3] In fig. 71, vol. i. p. 874, the relations of the convolutions to the internal surface of the skull are represented, and their want of accurate correlation to the phrenological areas can be seen by comparing that figure with the foregoing series.

The teachings of anatomy with regard to phrenology may be summarized thus: (1) the rate of growth ouf brain is concurrent with the rate of development of mental faculty; (2) there is some degree of structural differentiation as there are varying rates of development of different Parts of the cerebral surface ; (3) there is no accordance between the regions of Gall and Spurzheim and definite areas of cerebral surface.

Physiological Aspect.—The theory of some of no older metaphysicians, that the mind, in feeling and reflexion, makes use of no material instrument is not now accepted by psychologists. It was advanced by Brougham and Jeffrey as against the theory of phrenology; but the doctrine that the brain is the organ of the mind is now universally received. While it is probable that certain molecular changes in the grey matter are antecedents or concomitants of mental phenomena, the precise nature of these Processes, to what extent they take place, or how they vary among themselves have not as yet been determined experimentally; the occurrence of the change can only be demonstrated by some such coarse method as the altered pulsation of the carotid arteries, [Footnotes 847-4] the increase of the temperature of the head, [Footnotes 847-5] the abstraction, during brainaction, of blood from other organs as shown by the plethysmograph, or the formation of lecithin and other products of metabolism in brain-substance. As yet not a single step has been made towards the understanding of the connexion between the molecular changes in the nerve-cell and the phenomena of thought and feeling. While our knowledge of the anatomy of the brain, especially of the grey nuclei and of the white bands uniting them, has within the last few years become much more accurate, brain-function has not as yet been so definitely determined; indeed, much of nerve-physiology, especially that part which relates to the division of labour in the nerve-centres, is largely hypothetical and based on anatomical structure. Certain masses of grey nerve-matter situated in the spinal cord and medulla oblongata are so linked by nerve-cords to organs outside the nervous system which are set apart for the discharge of separate functions that they obviously form parts of the mechanism for the fulfilment of such functions. In the cases where these can be subjected to experiment we learn that they are nervous centres presiding over the discharge of such functions; and it has been determined by experiment, or else deduced from anatomical structure, that in those lower parts of the nervous centres which are more directly connected with the segmental elements of the body there is a certain localization of function ; hence the centres of pelvic actions of respiration, cardiac action, anhibition of vasomotor influence, deglutition, secretions, &c., can be mapped out in ascending series. As certain of these centres are united by bands of fibres to the larger and higher-lying grey portions of the nervous centres there is an a prion presumption inn favour of the extension of this principle of localization. This has been premised on metaphysical as well as on anatomical grounds. Bonnet believed each portion of the brain to have a specifically separate function, and Herbert Spencer has said that "no physiologist can long resist the conviction that different parts of the cerebrum subserve different kinds of mental action. Localization of function is the law of all organization, whatever; separateness of duty is universally accompanied with separateness of structure, and it would be marvellous were an exception to exist in the cerebral hemispheres. Let it be granted that the cerebral hemispheres are the seats of the higher psychical activities; let it be granted that among these higher psychical activities there are distinctions of kind which, though not definite, are yet practically recognizable, and it cannot be denied, without going in direct opposition to established Physiological principles, that these more or less distinct kinds of psychical activity must be carried on in more or less distinct parts of the cerebral hemisphere."

For the results of experiment on the brain, see PHYSIOLOGY, section "Nervous System."

There is a large weight of evidence, which cannot be explained away, in favour of the existence of some form of localization of function. So little is known of the physical changes which underlie psychical phenomena, or indeed of the succession of the psychical processes themselves, that we cannot as yet judge as to the nature of the mechanism of these centres. So much of the psychic work of the individual life consists in the interpretation of sensations and the translation of these into motions that there are strong a priori grounds for expecting to find much of the material of the nerve-centres occupied with this kind of work, but in the present conflict of experimental evidence it is safer to suspen d judgment. That these local areas are not centres in the sense of being indispensable parts of their respective motor apparatuses is clear, as the function abolished by ablation of a part returns, though tardily, so that whatever superintendence the removed region exercised apparently becomes assumed by another part of the brain. [Footnotes 847-6] Experimental physiology and pathology, by suggesting other functions for much of the brain-surface, are thus directly subversive of much of the phrenology of Gall and Spurzheim.

Psychological Aspect.—The fundamental hypothesis which underlies phrenology as a system of mental science is that mental phenomena are resolvable into the manifestations of a group of separate faculties. A faculty is defined as "a convenient expression for the particular states into which the mind enters when influenced by particular organs; it is applied to the feelings as well as to the intellect, thus the faculty of benevolence means every mode of benevolence induced by the organ of benevolence" (Combe). In another work the same author says it is "used to denote a particular power of feeling, thinking, perceiving, connected with a particular part of the brain." The assumption is contained in the definition that the exercise of a faculty is the physical outcome of the activity of the organ, and in several of the standard works this is illustrated by analogies between these and other organs; thus the organs of benevolence and of firmness are said to be as distinct as the liver and pancreas. The mind, according to another author, consists of the sum of all the faculties. In this view the unity of consciousness is somewhat difficult to explain, and consequently there is assumed by others a single unifying substratum, and on this the organs are supposed to act; thus thoughts are defined as "relations of the simple substance, mind, to certain portions of the encephalon" (Welsh, , i. 206). Gall himself believed that there was but a single principle which saw, felt, tasted, heard, touched, thought, and willed (Fonctions du Cerveau, i. 243); and the American exponent of phrenology, Caldwell, says "the mind is as single in its power as it is in its substance; it is a quickening and operating principle, essential to all the mental faculties, but does not, by. any means, possess them itself " (Elements, p. 16). It is not easy to understand the supposed relation of this hypothetical substratum to the separate faculties acting on it. It must be both immaterial and unconnected with the brain, as the whole two thousand million cells supposed to exist in the cerebral hemispheres are all parcelled out among the faculties, and none are left for the unifying nous.

Each organ is considered as engaged, either independently in bringing forth its own product, or collectively with others in elaborating compound mental states, and according to their several degrees of development and activity they are considered capable of perceiving, conceiving, recollecting, judging, or imagining each its own subject. This mechanical conception of the division of labour in the production of the phenomena of mind has the charm of simplicity, but is attended with the difficulty that arises in discriminating the operations of the different organs one from the other. Phrenologists are apt to be vague respecting the limits of the several faculties, as about the boundaries of the separate organs. It was pointed out by Jeffrey that the lines of demarcation between benevolence, adhesiveness, and philoprogenitiveness were indeterminate, although the organs are not very close, and the same applies to other organs.

It is unfortunate for the clearness of the definition that, although historically the faculties were the first phenomena noted, independent of and previous to their localities.

The following arguments are adduced in favour of the fundamental separateness of the faculties: (1) analogy, elsewhere in the animal economy division of labour is th rule; (2) the variety of mental endowment observed among children before they are influenced by education, and the inequalities in the mental endowments of individuals; (3) the phenomena of insanity, especially of monomania; (4) the varying periods at which individual faculties attain their maximum development; (5) the phenomena of dreams, and the awakening of a limited number of faculties during them; (6) pain being felt in an organ when it is overtaxed.1

Such faculties are supposed to be primary—(1) as exist in some animals and not in others, (2) as vary in their development in the sexes, (3) as are developed in varying proportions with regard to other faculties, (4) as may act separately from other faculties, (5) as are not necessarily simultaneous with other faculties in action, (6) as are hereditary, and (7) as may be singly diseased.

According to the development of their powers mankind may be divided into six classes: (1) those in whom the highest qualities are largely developed and the animal qualities feeble; (2) those with the reversed conditions developed, with large animal and feeble intellectual and moral faculties; (3) those in whom good and evil are in constant war, with active animal and strong intellectual faculties and sentiments; (4) those partial geniuses in whom a few qualities are unusually developed, while the rest are at or below the mediocre standard; (5) those men of moderate endowment in whom some faculties are nearly or quite deficient; (6) those with an unvarying standard of undistinguished mediocrity in all their faculties.

It is perhaps unfortunate that the word "faculty" has been used in this sense of original power by phrenologists. It would have been better to employ, as Mr Lewes suggests, the term "function" for the native activity of an organ, and to leave "faculty" for the expression of an acquired activity. "Faculty is properly limited to active power, and therefore is abusively applied to the mere passive affections of the mind" (Hamilton, Lectures, i. 17 7).

Practical Application.—"Die Schädellehre ist allerdings nicht so sehr Irrthum in der Idee als Charlatanerie in der Ausführung," says one of its most acute critics. Even though no fault could be found with the physiology and psychology of phrenology, it would not necessarily follow that the theory could be utilized as a practical method of reading character; for, although the inner surface of the skull is moulded on the brain, and the outer surface approximates to parallelism thereto, yet the correspondence is sufficiently variable to render conclusions therefrom uncertain. The spongy layer or diploe which separates the two compact tables may vary conspicuously in amount in different parts of the same skull, as in the cases described by Professor Humphry (Journ. of Anat., vol. viii. p. 137). The frontal sinus, that opprobrium phrenologicum, is a reality, not unfrequently of large size, and may wholly occupy the regions of five organs. The centres of ossification of the frontal and parietal bones, the muscular crests of these and of the occipital bones also, differ in their prominence in different skulls. Premature synostoses of sutures mould the brain without doing much injury to its parts. Artificial malformations alter the apparent skull-shape considerably and affect the relative development of the brain but little. All these and other cogent reasons of a like kind, whose force can be estimated by those accustomed to deal with the component soft parts of the head, should lead phrenologists to be careful in predicating relative brain-development from skull-shape. Psychology, physiology, and experience alike contribute to discredit the system and to show how worthless the so-called diagnoses of character really are. Its application by those who are its votaries is seldom worse than amusing, but it is capable of doing positive social harm, as in its proposed application to the discrimination or selection of servants and other subordinate officials. It has even been proposed to, use it for the purposes of the guarantee society and for the selection of parliamentary representatives. The sarcastic suggestion which originated with Christopher North of moulding children’s heads so as to suppress the evil and foster the good was actually repeated in good faith by a writer on phrenology, but experience of the effects of malformation leads one to be sceptical as to the feasibility of this mode of producing a social Utopia. The application of phrenology to the art of painting and sculpture has been suggested, but a careful examination of some of the best pictures of the best masters, who were close observers of nature, shows that no phrenological principles were accepted by them in their works. An application to ethnology has also been proposed; but, although there are in most cases well-marked racial characters presented by the skull, yet all attempts at correlating national characteristics therewith have been groundless and worthless. For further particulars on allied subjects, see PHYSIOGNOMY.

LITERATURE.—Prochaska, Functions of the Nervous System (tr. by Laycock, in Sydenham Society’s series, 1851); Gall, Recherches sur le Système Nerveux, &c. (Paris, 1809), Anatomie et Physiologie du Système Nerveux, &c. (Paris, 1810-19), Traité des Dispositions innées de l’Ame et de l’Esprit (Paris, 1811), and Sur les Fonctions du Cerveau (6 vols., 1825) ; Beryk, Bemerkungen u. Zweifel über die Schäddellehre des Dr Gall’s (Leipsic, 1803); Marton, Leicht-fassliche Darstellung der Gehirn it. Schädellehre (Leipsic, 1803) ; Metzger, Ueber den menschlichen Kopf (Königsberg, 1803); Walther, Neue Untersuchungen der Gall’schen Gehirn- und Schädellehre (Munich, 1804); Kessler, Prüfung des Gall’schen System (Jena, 1805); Bischoff, Darstellung des Gallschen Gehirn und Schädellehre, &c. (Berlin, 1805) ; Ackermann, Die Gallsche Gehirnlehre widerlegt (Heidelberg, 1806); Himly, Erörterung der Gallsehen Lehre (Halle, 1806) ; Forster, "Sketch of the New Anatomy and Physiology of the Brain," in Pamphleteer (1815, No. ix., reprinted with additions 1817); Spurzheim, The Physiognomical System of Gall and Spurzheim (London, 1815), Phrenology, or the Doctrine of the Mind (1825), and The Anatomy of the Human Brain (1826) ; Gordon, Observations on the Structure of the Brain, comprising an estimate of the claims of Gall and Spurzheim, &c. (1817) ; G. Combe, Essays an Phrenology (Edinburgh, 1819), Elements of Phrenology (1824), System of Phrenology (1825), Constitution of Man (1827), Lectures on Phrenology by Boardman (1839), and Outlines of Phrenology (1847) ; Dewhurst, Guide to Human and Comparative Phrenology (London, 1831) ; Otto, Phroenologien eller Gall’s og Spurzheims Hjoerne og Oryanlaere (Copenhagen, 1825) ; Broussais, Cours de Phrénologie (Paris, 1836) ; Vimont, Traité de Phrenologie humaine et comparée (1836) ; Noel, Grundzüge der Phrenologie (Leipsic, 1836), and Die materielle Grundlage des Seelenlebens (Leipsic, 1874) ; Macnish, Introduction to Phrenology (Glasgow, 1836) ; Capen, Phrenological Library (Boston, 1836); Ferrarese, Memorie risguardanti la Dottrina Frenologica (1836-38) ; Watson, Statistics of Phrenology (1836) ; Azais, Traité de la Phrénologie (Paris, 1839) ; Sidney Smith, Principles of Phrenology (Edinburgh, 1838) ; Joshua T. Smith, Synopsis of Phrenology; Forichon, Le Matérialisme et la Phrénologie combattu (Paris, 1840) ; K. G. Carus, Grundzüge einer neuen und wissenschaftlich begründeten Kranioskopie (Stuttgart, 1841) ; Castle, Die Phrenologie (Stuttgart, 1845) ; Struve, Geschichte der Phrenologie (Heidelberg, 1843) ; Idjiez, Cours de Phrénologie (Paris, 1847); Flourens, Examen de la Phrénológie (Paris, 1842); Serrurier, Phrénologie Morale (Paris, 1840); Mariano Cubi i Solar, Leçons de Phrénologie (Paris, 1857) ; Morgan, Phrenology ; Donovan, Phrenology; Struve and Hirschfeld, Zeitschrift für Phrenologie (Heidelberg, 1843-45); Phrenological Journal (20 vols., 1823-47) ; Lelut, Qu’est ce que la Phrénologie? (1836), and Rejet de l’Organologie phrénologique (1843) ; Tupper, Enquiry into Dr Gall’s System (1819); Wayte, Antiphrenology (1829); Stone, Observations on, the Phrenological Development of Murderers (Edinburgh, 1829); Epps, Horae Phrenologicae (1829) ; Crock, Compendium of Phrenology (1878); Aken, Phrenological Bijou (1839) Hall, Phreno-Magnet (1843). (A. MA.)


842-1 Since this article was put in type, Professor Pickering at Harvard College has published his concluded results. Professor Pritchard at Oxford has also completed his photometric measures of some 2000 of the same stars. Taken as a whole, and as comprising the first complete and systematic efforts in a new and difficult line of research, the agreements of the two catalogues may fairly be regarded as very satisfactory, not to gay surprising.

842-2 De partibus animalium, ii. c. 7 (Paris, 1629, p. 986).

842-3 In the Chaldee portion of Daniel (ii. 28, iv. 5, vii. 1) visions and thoughts are referred to the head. For other particulars as to early views see Nasse on the psycbical relations of the heart in Zeitschr. f. psychische Aerzte, i., 1818. A few of the later medical writers express similar views ; see Santa Cruz, Opuscula medica, Madrid, 1624.

842-4 Book of the Dead, ch. xxvi. - xxx.

842-5 viii. 30, ed. Cobet, Paris, 1850, p. 211,—GREEK

842-6 "De morbo sacro," in Opp., ed. Kühn, i. 612 sq.; also Epist., iii. 824. Among later writers Licetus of Genoa taught the coextension of soul and body, upon which subject he wrote two books (Padua, 1616). In this connexion may be noted a curious work by Schegkius, Dialogus de animae principatu, Aristotelis et Galeni rationes praeferens quibus ille cordi, hic cerebro, principatum athibuit, Tübingen, 1542.

842-7 Phaedo, ch. xlv., Valpy’s ed., 1833, p. 128. See also Haller’s Bibl. anat., i. 80.

842-8 De usu partium, ed. Kühn, iii. 700,—"GREEK" See also v. 288, viii. 159, xv. 360. In his Definitiones medicae (467, xix. 459) he says that the brain has a GREEK, but does not specify in what part the power inheres.

843-1 See Paulus Aegineta, Stephens’s ed., 1567, cap. 62, col. 363, also Actuarius, De actionibus et affectibus spiritus animalis, Paris, 1556, p. 22, c. 7.

843-2 Comment. in Arist., Latin tr., Venice, 1550, A. 73.

843-3 "Imaginatio quidem in duobus ventriculis anterioribus perficitur. Cogitatio vero in medio expletur. Memoria autem posteriorem possidet ventriculam." De re medica, Gérard’s tr., Basel, 1554, i. p. 9.

843-4 Lib. can., 1507, p. 19, and De naturalibus, c. 6.

843-5 Summa theologiae, ed. Migne, i. pp. 1094, 1106-7. Prochaska and his translator Laycock (Mind and Brain, ii. 163) charge Duns Scotus with holding this view, which most probably he did; be does not express it, however, but simply specifies the cerebrum and its root, the spinal cord, as the source of the nerves along which sensory impulses travel. Comment. de anima, Leyden, 1637, i. 615.

843-6 De anima, exiv., ed. Franeker, 1597, p. 268.

843-7 Opera, Leyden, 1651, iii. 124, vi. 20.

843-8 Lilium, medicinae, Venice, 1494, 101.

843-9 Avicenna’s fifth region is interposed between imaginativa and aestimativa (De naturalibus, c. vi.). Thomas Aquinas combines the last two, which he says are possessed by the same eminence (op. cit., i. 1107). On the other hand, he says of ratio particularis, "medici assignaut determinatum organum, scilicet mediam partem capitis" (i. 1106).

843-10 Physiognomia, Padua, 1491.

843-11 Dialogo nel quale si ragione del modo di accrecere e conservar la memoria, Venice, 1562, 27.

843-12 Physiognomia, 1670.

843-13 Tabulae element. scientiae, Rome, 1632.

843-14 Theatr. anat., Basel, 1621, iii. 314 ; Caspar Hoffmann, De usu cerebri, Leipsic, 1619. See also Spigelius, De corp. humani Mrica, Amsterdam, 1645, 296 ; Varolius, 1591, p. 6 ; Wepfer, Historiarum, apoplecticarum potissimum, anatomiae subjectorum, auctarium, Amsterdam, 1681. See also many of the anatomical works of this age, such as those of Fernel, Cabrol, Argenterius, Rolfinck, &c.

843-15 Alexander Benedictus, Anatomica, vol. iii., Basel, 1527. Quercetanus is said by Laycock (following Prochaska) to have assailed this doctrine of spirits,—on what ground is not apparent, as he certainly expresses himself as a believer in the old view ; see Tetras graviss. tolius capitis affect., Marburg, 1606, x. 89. Possibly Prochaska may allude to an obscure passage in the work of the oiher Quercetanus (Eustachius), Acroamaton in librum, Hippocratis, Basel, 1549, p. 14, not to the better-known Josephus Armeniacus, but he gives no reference.

843-16 Opera, Basel, 1625, col. 22, 89.

843-17 Joelis opera medica, Amsterdam, 1663, 22.

843-18 "Epist. de cerebro et cort. cereb. ad Fracassatum," in Opp., Geneva, 1685, vol. ii.

843-19 De anima brutorum, Oxford, 1677, p. 71, "hae particulae subtilissimae, spiritus animales dictae, partium istarum substantias corticales primo subeuntes, exinde in utriusque meditullia," &c., also p. 76 sq.

843-20 De re anatomica, Frankfort, 1593, p. 350.

843-21 Fechner, Psychophysica, ii. 382.

843-22 Some of the mediaeval views were very fanciful, thus Schabtai Donolo taught that the spirit of life has its seat in the brain-membrane, expanded over the brain and subarachnoid fluid, as the Shekinah in the heavens arched over the earth and waters. See Der Mensch als Gottes Ebenbild, ed. Jellinek, Leipsic, 1854.

843-23 Vermischte medicinische Schriflen, 1764, i. 58.

843-24 See Laycock’s trans., in Sydenh. Society’s Pub., 1851.

844-1 For a brief sketch of the life of Gall, see GALL, vol. x. p. 37.

844-2 Other burlesque and satirical writings were published at this time, notably The Phrenologists, a farce by Wade, 1830 ; The Headpiece, or Phrenology opposed to Divine Revelation, by James the Less ; and A Helmet for the Headpiece, or Phrenology incompatible with Reason, by Daniel the Seer.

844-3 For topographical purposes Broca’s names are adopted as the most convenient for localities on the head.

844-4 Apollonius Rbodius speaking of the love of Medea for Jason (Argonautica, iii. 760-765) says, "GREEK…"

845-1 Martius tells us that the Caribs castrate their own children, fatten and eat them, an abuse of the organ of phloprogenitiveness ; see also Garcilaso de la Vega, Hist, des Incas, i. 12.

845-2 Mem. de l’Acad. de Médecine, 1840, viii. 149.

845-3 For further particulars of structure, in addition to the authors quoted at vol. i. p. 878, see Bevan-Lewis and Clark, P. R. S., 1878, and Phil. Trans., 1880 and 1882.

845-4 See Eugène Gley, "Sur les Conditions Physiologiques de la Pensée," in Archives de Physioloqie, 1881, 742.

845-5 Lombard, N. Y. Med. Journal, June, 1867, and Experimental Researches on the Regional Temperature of the Head, London, 1872.

846-1 Della Struttura degli Emisferi Cerebrali, Turin, 1830.

846-2 Mémoire sur les plis cérébraux de l’homme et des primates, Paris, 1856.

846-3 Schädel, Hirn, und Seele, Jena, 1856.

846-4 Magendie and Desmoulins, Anat. Du syst. Nerveux, Paris, 1825.

846-5 Rivista, Sperimentale di Freniatria, ii. 193 (1883) ; ibid. iv. 403 Archiv für Anthropologie, 1879, xi. 289. ,

846-6 Neurologisches Centralblatt, 1883, p. 457.

846-7 Weisbach, Med. Jahrbuch der k. Gesellsch. der Aerzte,. Vienna, 1869, xvii. 133 ; Merkel, Beitr. z. post-embryonale Entwickelung des menschl. Schädel, Bonn, 1882 ; Calori, Mem. de l’Accad. di Bologna, 1871, x. 35.

846-8 Lebon, Revue d’Anthropologie, 1879, 15 ; Marshall, Proc. Roy. Soc., 1875, 564 ; Engel, Wiener med. Wonchenschrift, 1863.

846-9 Centralblatt, 1880, No. 14 ; Beiträge zur Biologie, Stuttgart, 1882.

847-1 Martius tells us that the Caribs castrate their own children, fatten and eat them, an abuse of the organ of philoprogenitiveness; see also Garcilaso de la Vega, Hist. des Incas, i. 12.

847-2 Mém. De l’Acad. De Médecine, 1840, viii. 149.

847-3 For further particulars of structure, in addition to the authors quoted at vol. i. p. 878, see Bevan-Lewis and Clark, P. R. S., 1878, and Phil. Trans., 1880 and 1882.

847-4 See Eugène Gley, "Sur les Conditions Physologiques de la Pensées," in Archiv de Physiologie, 1881, 742.

847-5 Lombard. N. Y. Med. Journal, June, 1867, and Experimental Researches on the Regional Temperature of the Head, London, 1872.

847-6 For cases, see Rochefontaine, Archives de Physiologie, 1883, 28 Bianchi, La Psichiatria, i. 97.

848-1 It is interesting in this connexion to note that in a case published by Professor Hamilton in Brain (April 1884), where a tumour existed on the occipital lobe, the pain was persistently referred to the fore-head. Many similar cases are to be noticed among the records of localized brain-lesions. Bearing on this point also it is worth noting, once for all, that in nothing is the purely hypothetical nature of phrenological description better realized than in the accounts of what these authors call the "natural language of the faculties,"—that poets are supposed to touch ideality when composing, musicians to press on tolie and time, and painters on form and colour, when in the exercise of their arts ! Yet we are gravely taught this in the standard works on the subject.

The above article was written by: Alexander MacAlister, M.A., M.D., D.Sc., LL.D., F.R.S.; Professor of Anatomy, Cambridge University, from 1883; Fellow of St. John's College, Cambridge; Professor of Zoology, University of Dublin, 1869; Professor of Anatomy and Chirurgery, Dublin, 1877; author of Introduction to Animal Morphology, Morphology of Vertebrate Animals, Textbook of Human Anatomy, etc.

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