ADVERTISEMENT. 



THE want of some good elementary work in our own lan- 

 guage, at least of one that, within a small compass and rea- 

 sonable price, should express the amount of our knowledge 

 upon the Anatomy of the several classes of Vertebrate Animals, 

 was the chief inducement to my undertaking the translation 

 of the present work, in the selection of which I was encour- 

 aged by the very favorable light in which Dr. RUDOLPH 

 WAGNER had been already made known to the Medical Pro- 

 fession through his " Elements of Physiology," so ably edited 

 by Dr. WILLIS. The thorough practical knowledge which 

 he possesses of his subject, combined with the clearness and 

 brevity of his style, render indeed his works the very best in- 

 troductions that are extant to the sciences of Physiology and 

 Comparative Anatomy. 



" The Lehrbuch der Zootomie," of DR. WAGNER, having 

 lately arrived at a second edition in Germany, has given the 

 Author an opportunity of thoroughly remodelling the work, 

 and introducing those improvements which time, experience, 

 and more extended knowledge, have suggested to him. It is 

 from this amended edition that I have worked, and finding 

 the original so complete, I have neither added nor taken any- 

 thing away from it, but have been content with doing my best 



