iv THE NAUTILUS. 
NORTH AMERICAN SHELLS FOR SALE. 
An experience of many years, as an active collector of 
American Shells, enables the undersigned to supply unusually 
large and choice collections at moderate prices. 
West Coast Shells and their varieties a specialty. 
I can supply collections largely illustrating the following 
important publications on American Conchology: Report 
on West Coast Mollusks by P. P. Carpenter, B. A., Ph. D., 
Smithsonian Institution Series, Washington, 1872. 
West Coast Shells by Prof. Josiah Keep. 
Catalogue of the Shells of the Southeastern Coast of 
United States by W. H. Dall. 
Manual of American Land Shells by W. G. Binney. 
These shells have been collected with great care, and 
every effort has been made to make them scientifically 
correct In every respect. 
The series contains many rare species, interesting 
and important varieties and are, undoubtedly, the best 
collections of American Shells extant. Collections of these 
Shells can be seen at the United States National Museum, 
Washington; Philadelphia Academy Sciences; State Nor- 
mal School, San Jose, California; Mills College, California, 
and in many other public and private Museums. 
ADDRESS, 
HENRY HEMPHILL, 
SAN DIEGO, CALIFORNIA. 
BOX 973. 
