Vlll PREFACE. 



nical term, tliey have not hesitated to use such term, 

 appending, either in the same page or in the Glossarial 

 Index, its derivation and meaning. 



"In reference to the terms of Anatomy, a method has 

 been adopted further to facilitate their reception and 

 easy recognition by reference to the part itself so signi- 

 fied in the wood-cuts; the same or corresponding part 

 bearing the same numerals in all the cuts ; thus the sca- 

 pula, or blade bone, is indicated by the No. 51 in the 

 fishes' skeleton. Fig. 9, and in all the succeeding skele- 

 tons up to those of the Ape and Man, Fig. 46." 



