VALUABLE WORKS ON CONCHOLOGY 



FOR, SA.LE. 



1. American Journal of Conchology, 1865-1868. Four volumes, 8vo. 



Coiitiiining over sixteen hundred paires, illustrated by one hundred litho- 

 graphic plates of shells, many of them finely colored, several portraits of 

 distinguished coiichologists, and about a thousand wood engravings. The 

 articles are contributed by all the prominent American Conchologists. 

 Published at $40. Price reduced to $16 for the set. 



2. American Journal of Conchology, Vol. 5, 1869-70. Containing 



;->5U pages of valuable articles by VVni. Af. Gabb, James Lewis, M.D., VVm. 

 G. Binnev, Thomas Bland, T. .\. Conrad, Wui. Harper Pease, John H. Red- 

 field^Theo. Gill, Wm. H. Dall, Ralph Tate, Wesley Newcomb, M.D., S. R. 

 Roberts, J. G. Cooper, M.D , John Wolf, and George W. Tryon, jr. The 

 illustrations consist of 17 lithographic plates, partly colored, and wood 

 engravings. Price $10.00. 



3. Monograph of the Terrestrial Mollusca of the United States. 



With illustrations of all- the Species. By George W. Tryon, Jr. The 

 work is now completed. It contains over 200 pages of text and is illus- 

 trated by 18 lithographic plates crowded with figures. Only 100 copies 

 were printed, which are mostly sold. The work is published in the 

 following stjies : 

 1st. Plain edition, printed on fine calendered paper, with uncolored 



plates, Price, $8.50. 



2d. Colored edition, same paper, plates finely colored, Price, $13.50. 



3d. Fine edition, on very heavy plate paper, with duplicate plates, plain 



on tinted paper, and finely colored, Price, $20.00. 



4. TRYON, GEO. W., Jr., Synonymy of the Species of Strepoma- 

 tidae (Meianians^ of the United States, with critical observations 

 on their Affinities, and Descriptions of Land, Fresh Water and Marine 

 Mollusca. 8vo, over 100 pp., with lithographic plates. 1865. 



Cloth, $2.00. Paper, $1.75. 



CONTENTS: ConlrihiUions towards a Monof/raplii/ of /.he Order Phnladacea, witlt Descriptions of 

 N'.vo Sp'oies. Descriptions of two new Species of Fresh Water Mollusca from Panama. Des- 

 cription of a new Exotic Melania. D'seriplions of new Species of Pi-esli Wtler Mollusca be- 

 Innginfi to the Families A mnicolidic, Vidi-aliflK and Limnieidie, inhahitin// California. De- 

 scription of a new Species of Pteiirocera. Di-scription of a new Species of Terrdo, from New 

 Bedford. Mass. Descriptions of two new Spe lies of Mexican Land Shells. Synonymy of the 

 Species of Strepomatidie. Parts 1, 2, 3, 4 and Supplement. 

 The Edition is very limited — only 75 copies. Early application will, therefore, be necessary to 



secure the work. 



5. RAFINESQUE, C. S., Complete Writings on Recent and Fossil 

 Conchology. Edited by William G. Binuey and Geo. W. Tryon, Jr. 

 8vo. 1864. With lithographic plates. Price, $2.50. 



This is the uuly edition of Rafinesque'.<! Complete Writings ever pulilished, and fontains reprints 

 uf many piipers, which had been entirely forgotten by naturalists. 



6. 



7. 



TRYON, GEO. W., Jr., List of American Writers on Recent 

 Conchology, with the Titles of their .Memoirs and Dates of Publication. 

 8vo. 1860. Printed on fine plate paper. Cloth, $2.00. Paper, .$1.75. 



TRYON, GEO. W., Jr.. Monograph of the Order Pholadacea, 



and other Papers. 8vo, 127 pp., with plates. 1862. 



Cloth, $2.00. Paper, $1.75. 

 Contains Monographs of the P>imilies Gastroehaeniilae, Pholarlilae, and Teredidoe. History of 

 American Conchology, and Descriptions of new Species of Fresh Water and Marine Shells. 



,5j,*.^ A discount of 20 per cut. will he allowed from the above price.?, to Members 

 of the Conchological Section and to Booksellers. Apply to 



CoNCHoLOGiCAL Skctio.v ACADEMY OF Natuual SCIENCES, Philadelphia, 

 Or to its Agents — see 1st page of this cover. 



