THE NAUTILUS. 



A New Catalogue of North American 



Land Shells- 



A revised reprint of the Catalogue published in THE NAUTILI'S 

 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. IV to XI inclusive, $1.OO per Vol. 



NAUTILUS ADVERTISING RATES.. 



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 each insertion in advance. Smaller space in proportion. A discount 

 of 25 per cent, will be made on insertions of six months or longer. 

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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: Marine, fresh water and land shells for same. 

 Especially desire to receive duplicate lists of foreign collectors. 



CHARLES S. HODGSON, Albion, 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. 



WANTED : Species of Plectopylis in exchange for other shells or 

 cash. Lists first. 



G. K. GUDE. 114 Adelaide Road, London, N. W., England. 



FOR EXCHANGE : U. S. and foreign shells. Send list and receive 

 mine. TH. JANSEN, 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 land shells. 



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



