A MANUAL 



ANATOMY OF YERTEBEATED 

 ANIMALS. 



BY 



THOMAS H. HUXLEY, LL.D., F.R.S., 



AUTHOR OF ''lay SBBHONS/^ "MAN'b PLACE IN NATURE," *' ORIGIN OF SPECIES,' 



ETC., ETC. 



NEW YOEK: 

 D. APPLETON AND COMPANY, 



1898. 



