AMERICAN 



NATURAL History Series. 



VOLUME I. 



Ferns in their Homes and Ours. 



By J. Robinson, Professor of Botany, Massachusetts Horticul- 

 tural Society. With eight chromo-lithographs of rare ferns and 

 many other plates and illustrations. i2mo. Cloth. $1.50. 



VOLUME IL 



The Structure and Hahits of Spiders. 



By J. H. Emerton. Fully illustrated. i2mo. Cloth. $1.50. 

 OTHERS TO FOLLOW. 



