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. 



COMPLETE VOLUMES OF THE NAUTILUS, 

 Vols. IT to XI inclusive, $1.00 per Tol. 



NAUTILUS ADVERTISING RATES. 



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Address, C. W. JOHNSON, 



WAGNER FREE INSTITUTE, Philadelphia, Pa. 



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 : Many desirable land, fresh water, and marine 

 shells, especially from N. Africa, for species not in my collection. 

 Last first. 



C. F. ANCKY, administrates adjoint, Dra-el Mizan, Algeria. 



FOR EXCHANGE: Austrian shells; also various marine, land, 



3ind fresh water shells, for species not in my collection. List first. 



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



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. 



FOR EXCHANGE : U. S. and foreign shells, send list and receive 

 mine. TH. JANSON, 1365 N. Washtinaw Ave., Chicago, 111. 



FOR DISPOSAL : A large collection of marine, fresh water, and 

 land shells (many rare from India, Ceylon, New Guinea, and Philip- 

 pines, etc. ). Wanted rare land or offers. 



Miss LINTER, Saville House, Twickenham, England. 



FOR EXCHANGE : Marine, fresh water, and laud shells. 



C. H. LAWTON, P. O. Box 37, Santa Barbara, Gal. 



