11 THE NAUTILUS. 



A New Catalogue of North American 



Land Shells 



A revised reprint of the Catalogue published in THE NAUTILUS 



from August, 1897 to April, 1898. Giving the geographic 



distribution, most recent synonymy, varieties and 



classification of all species known to 



inhabit America north of 



Mexico. 

 35 pages, in paper cover. PRICE 25 CTS. 



NAUTILUS ADVERTISING RATES 



Advertisements will be inserted at the rate of $1.OO per 

 inch for each insertion in advance. Smaller space in propor- 

 tion. A discount of 25 per cent, will be made on insertions of 

 six months or longer. In order to have the paper out promptly, 

 " copy " is put in the printer's hands on the 2Oth of each 

 month. 



Address, C. W. JOHNSON, 



WAGNER FREE INSTITUTE, Philadelphia, Pa. 



LAND AND MARINE SHELLS. 



A special collection from the high mountains ) FIRST CLASS 



in Java, Lombok and Celebes. f SPECIMENS ONLY. 



PKICES MODERATE. 



PRICE-LIST FREE ON APPLICATION. 



H. FRUHSTORFER, Thurm=Strasse 37, Berlin, N. W. 



EXCHANGES, 



The following space is to be given to exchanges. Notices not 

 exceeding three lines, will be free to subscribers as long as our 

 limit of space will allow. 



FOR EXCHANGE : Land, fresh water and marine shells, (many 

 rare species offered) for apecies not in my collection. List first. 



C. F. ANCEY, administrateur adjoint, Dra-el Mizan, Algeria. 



OFFERED : Land, fresh-water and marine shells, many desir- 

 able species. Also a few Conchological books. 



A. A. HINKLEY, Du Bois, 111. 



FOR EXCHANGE : Austrian shells ; also various marine, land 

 and fresh water shells, for species not in my collection. List first. 

 A. OBERWIMMER, Med. Ill, Haupt St. 97, Vienna, Austria. 



FOR EXCHANGE: Cyprceas for Cyprceas, send list to 



MRS. S. L. WILLIAMS, 593 Jackson Boulevard, Chicago, 111. 



OFFERED: Tertiary and recent land and fresh-water shells of 



France. WANTED : Tertiary and recent shells of North America. 



ANDRE BONNET, 55 Boulevard St., Michel, Paris, France. 



