Excerpt from An Essay on the Study of the Animal Kingdom: Being an Introductory Lecture Delivered in the University of London, on the 23rd of October, 1828Thesei subjects constitute the departments of Physical Science, termed Comparative Anatomy or Zootomy, Comparative Physiology, and Zoology, which treat of the forms, the mechanism, the properties, the phenomena, and the relations of all the existing and extinct species of Animals known upon the earth.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.