A STUDENT'S TEXT-BOOK 



OF 



ZOOLOGY. 



BY 



ADAM SEDGWICK, M.A.. F.R.S., 



FELLOW AND TUTOR OK TRINITY COLLEGE, CAMBRIDGE ; 

 AND READER OF ANIMAL MORPHOLOGY IN THE UNIVERSITY. 



VOL. I. 



LONDON: 

 SWAN SONNENSCHEIN AND CO., LTD., 



NEW YORK: THE MACMILLAN CO. 



1898. 



