"Animal Kingdom" Article - Table of Contents
Part 1. Animal Kingdom - Classification of Animals
Part 2. Animal Kingdom - The Protozoa
Part 3. Animal Kingdom - The Metazoa
The above article was written by the Rt. Hon. Thomas Henry Huxley, M.D., LL.D., F.R.S., President of the Royal Society, 1883-85; Professor of Natural History in the Royal School of Mines, London, 1854; author of Theory of the Vertebrate Skull, The Physical Basis of Life, Introduction to the Classification of Animals, Lay Sermons, Elementary Physiology, etc.