A COURSE 



OP 



PRACTICAL INSTRUCTION 



IN 



ELEMENTARY BIOLOGY 



BY 



T. H. HUXLEY, LL.D., SEC. K.S., 



ll 



ASSISTED BY 



H. N. MARTIN, B.A, M.B., D,Sc. 



FELLOW OP CHRIST'S COLLEGE, CAMBRIDGE. 



Honton : 

 MACMILLAN AND CO. 



1875. 



[All Rights reserved.] 



