A MANUAL OF 



ELEMENTARY 

 ZOOLOGY 



L. A. BORRADAILE, M.A. 



LECTURER IN ZOOLOGY IN THE UNIVERSITY OF CAMBRIDGE 

 FELLOW, DEAN, AND LECTURER OF SELWYN COLLEGE 



THIRD EDITION 



LONDON 

 HENRY FRO WD E HODDER & STOUGHTON 

 Oxford University Press Warwick Square, E.C. 



I 02O 



E* F„ 



