11 THE NAUTILUS. 



BACK VOLUMES OF THE NAUTILUS. 



Vol. IV. May, 1890 to April, 1891, . $1.00 

 Vol. V. May, 1891 to April, 1892, . 1.00 

 Vol. VI. May, 1892 to April, 1893, . 1.00 

 Vol. VII. May, 1893 to April, 1894, . 1.00 

 Vol. VIII. May, 1894 to April, 1895. . 1.00 

 Vol. IX. May, 1895 to April, 1896. . 1.00 

 Of Vols. I and II, which were known as the " Conchologist's Ex- 



change," and Vol. Ill of THE NAUTILUS, we can furnish odd 



numbers only. 



Extras of August and September number, (1895) containing an 



Index to the Conchologists' Exchange for binding with the latter, 



will be furnished at 10 cents per copy. 



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. 



EXCHANGEST 



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. 



WANTED. Slugs from west of the Rocky Mts. Large list of 

 marine and land shells offered. E. G. VANATTA, 



Acad. Nat. Sci., Logan Square, Philada., Pa. 

 OFFERED : Large and valuable collection of marine, land and 

 fresh water shells, in exchange for exotic land species. Send lists. 

 Miss LINTER, Arragon Close, Twickenham, Middlesex, Eng. 



WANTED : No. 7, vol. Ill, of THE NAUTILUS. OFFERED : 

 Other conchological papers. 



M. M. Schepman, Rhoon near Rotterdam, Netherland. 

 OFFERED : Southern California Marine for shells of the same 

 class or land and fresh-water shells. H. N. LOWE, 



113 N. Los Robles Ave., Pasadena, Cal. 



WANTED : Cyprsea, cones and foreign land shells. Can give 

 land, fresh-water and marine shells. Send lists and receive mine. 



CHAS. S. HODGSON, Albion, Ills. 



FOR EXCHANGE : About fifty species of Japanese Shells, Land, 



Marine and Fresh Water. Wanted Helicidse and Pupidte. Send 



for list. WARREN W. HERMAN, P. O. Box 1848, Boston, Mass. 



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



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



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



