A 



TEXT-BOOK OF ZOOLOGY 



BY 



T. JEFFERY PARKER, D.Sc., F.R.S. 



PROFESSOR OF BIOLOGY IN TUB UNIVERSITY OF OTAIiO. DUNKII1N, N.Z. 



AND 



WILLIAM A. HASWELL, M.A., D.Sc., F.R.S, 



PROFESSOR OF BIOLOGY IN THF. UNIVERSITY OF SYDNEY, N.S.W. 



IN TWO VOLUMES 

 VOL. I 



WITH ILLUSTRATIONS 



ILontion 



MACMILLAN AND CO., LIMITED 



NEW YORK: THE MACMILLAN COMPANY 

 1897 



All rights reserved 



