THE INTERNATIONAL SCIENTIFIC SERIES. 



AJSr IlsrTEODUCTION 



STUDY OP ZOOLOGY, 



ILLUSTRATED BY THE 



ORATFISII. 



BY 



T. H. HUXLEY, F. E. S. 



WITH EIGHTT-TWO ILLTTSTEATIONS. 



NEW YORK: 

 D. APPLETON AND COMPANY, 



78 FIFTH AVENUE. 

 1901. 



