ON THE 



ORIGIN OF SPECIES: 



OK, 



THE CAUSES OF THE PHENOMENA 



OF 



ORGANIC NATURE. 



% tipvm 4 $\* Statures to ftatorluiuj Pm 



BY 



THOMAS H. HUXLEY, F.R.S., F.L.S., 



rnoFESson of natural history in the jerjjyn street school of mines. 



NEW YORK: 

 D. APPLETON AND COMPANY 



443 & 445 BROADWAY. 

 1863. 



6&W 



Sw s *£\fe 



r QDA4f 



Sr V 





fc/| LIBRARY I>- 



