into groups, as genera, orders, and classes, to point out 

 more readily their mutual relations, and aid the memory 

 in acquiring knowledge concerning them, is a kind of prac- 

 tical logic eminently calculated to exercise and improve 

 our faculties of observation, perception, memory, and rea- 

 son. Comparative Anatomy is a study of analysis, which 

 discovers to us the chain of connection between all the 

 apparently isolated facts of Zoology ; it continually un- 

 folds to our view new scenes of wisdom and design in every 

 part of the animal creation ; it accustoms us to patient 

 and connected inquiry ; it begets a habit of minute ob- 

 servation and accurate discrimination ; and it alone has 

 conferred the rank of science on the study of animated 

 nature. It has engaged the attention of the most distin- 

 guished philosophers from the time of Democritus to the 

 present period; it has contributed largely to the advance- 

 ment of all the branches of the healing art, and to the 

 progress of Geology, Zoology, and the philosophy of 

 mind ; and it has afforded many of the most useful and 

 brilliant discoveries recorded in the history of science, as 

 of the Lacteal Vessels, the Absorbent System, the Thoracic 

 Duct, the Circulation of the Blood, and the great principle 

 of Galvanism. ^ f ' 



The course of instruction to be delivered on these two 

 extensive branches of science will embrace an account of 

 the structure, functions, history, and classification of ex- 

 isting animals, and a description of the fossil species. The 

 lectures and demonstrations will be illustrated by an ex- 

 tensive series of zoological specimens, drawings, and zoo- 

 tomical preparations, the greater part of which are already 

 collected and arranged. The classes, orders, and genera 

 of every division of the Animal Kingdom will be examined, 

 and the most useful and interesting species of each group 

 will be selected for illustration. 



After a few preliminary Lectures, detailing the objects 

 and relations of the study of Animals, and explaining the 

 technical language of the science, the Comparative Ana- 



