20 NOMENCLATURE 



marques & perfectionner les distributions ; faire 

 sortir enfin de cette fe*condation mutuelle des 

 deux sciences, 1'une par 1'autre, un systme 

 zoologique propre a servir d'introducteur et de 

 guide dans le champ de I'auatomie, et un corps 

 de doctrine anatomique propre & servir de de- 

 veloppement et d'explication au systme zoolo- 

 gique." * 



It is deeply to be lamented that so many nat- 

 uralists have entirely overlooked this significant 

 advice of Cuvier's, with respect to combining 

 zoological and anatomical studies in order to 

 arrive at a clearer perception of the true affini- 

 ties among animals. To sum it up in one word, 

 he tells us that the secret of his method is 

 " comparison," ever comparing and compar- 

 ing throughout the enormous range of his 

 knowledge of the organization of animals, and 

 founding upon the differences as well as the 

 similarities those broad generalizations under 



* " I therefore felt myself obliged, and this obligation cost me 

 no little time, to make my studies in anatomy and zoology, dissec- 

 tion and classification, keep pace with each other ; to seek in my 

 earlier investigations upon organization a better distribution of 

 groups ; to employ these again as a means of perfecting my 

 classification ; to arrive, in short, by this mutual fecundation of 

 the two sciences at a zoological system which might serve as a 

 pioneer and guide in the field of anatomy, and an anatomical 

 method which would aid in the development and explanation of 

 the zoological system." 



