PROSPEC TUS OF AN 



Important Work on Ferns. 



ILLUSTRATIONS OF 



The Ferns of North America. 



Text by Prof. Daniel C. Eaton, of Yale College. 

 Illustrations by Mr. Jas. H. Emerton. 



l>iiblisli(Ml by 

 S. E. CASSINO, NATURALISTS' AGENCY. 

 Salem, Mass. 



