VALUABLE WORKS ON CONCHOLGGY 



FOR, SA.IL.E. 



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



CoatainiQff ove*^ixteen hundred pages, illustrated by one hundred litho- 

 graphic platesm shells, miny of them finely colored, several portraits of 

 distinguisiied co.ichologists, and about a thousand wood engravings. The 

 articles are contributed by all the prominent American Conchologists. 

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



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



350 pages of valuable articles by Wni. M. Gabb, James Lewis, M.D., Wm. 

 G. Binnev, Thomas Bland, T. A. Conrad, Wm. 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 co^^ist 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 styles : 

 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 ediiion, 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 (Melanians^ of the United States, with critical observations 

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

 Mollusca. Svo, over 100 pp., with lithographic plates. 1865. 



Cloth, $2.00. Paper, $1.75. 



CONTENTS : Conlrihictiotis tmuards a Mnnography of the Order Pholadacea, with Descriptions of 

 Kew Sp'cif.t. D'.tcriptions of two new Species of Fresh. Water Mollusca from Panama. Des- 

 cription of a new Exotic Mdania. Descriptions of new Species of Fresh Water Mollusca be- 

 longing to the Families Ainnicolidx, Valvatidm and Limnie.idit., inhabiting California. De- 

 .■tcription of a new Species of Pleurocera. Description of a new Species of Teredo, from New 

 Bedford, Mass. Descriptions of two new Species of Mexican Lrind Shells. Synonymy of the 

 Species of Strepomatidfc, Parts 1, 2, 3, -i and Supplement. 

 The Edition is very limited — only 7.5 copii.is. 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. Binney and Geo. W. Tryon, Jr. 



8vo. 186-4. With lithographic plates. Price, $2.50. 



This i.s the only edition of Rafinesque's Complete Writings ever published, and contains reprints 

 of many papers, which had beeu entirely forgotten by naturalists. 



6. 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 



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



and other Papers. Svo, 127 pp., with plates. 1862. 



Cloth, $2.00. Paper, $1.75. 

 Cimtains .Monographs of the Families Gastrochsenidae, Pholadidae, and Teredidge. History of 

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



^*^ A discount of 20 per cent, will be allowed from the above prices, to Members 

 of the Conchological Section and to Booksellers. Apply to 



CoNCHoLOGiCAL SECTION ACADEMY OF NATURAL SCIENCES, Philadelphia,' 

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



