VALUABLE WORKS ON OONCHOLOGY 



FOR, HALE. 



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



Containing over sixteen hundred pages, illustrated by one hundred litlio- 

 t^raphic plates of shells, many of them finely colored, several portraits of 

 distinguished conchologisls, 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 



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

 G. Binnev, Thomas Bland, T. A. Conrad. \Vm. Harper Pease, Jolin H. Red- 

 field, Theo. Gill, Wra 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 con-ist of 17 litliograjjhic plates, partly colored, and wood 

 engravings. ^ Price $10.00. 



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



Witli illustrations of all the Species. By George W. Tryon, Jr. This 

 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, wliich 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 eilition, same i)aper, 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 (Melanians^ 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. 



COXTEXTS: (ontrihiilion.<< towards a Mnnoi/raph;/ nf tlie Order Phnladacea, with Descriptions of 

 New Sj-ipcies. Drscriptions of two new Species of Fresli M'uier Mollusca from Panama. Des- 

 cription of a new Exotic Melanin. Descriptions of new Species of Fresh Water Molhtsca be- 

 longinij to the Families Amnicolidsc, Valcatidsr and Liinmridte, inhabiting California. De- 

 scription of a new Species of Pleurocera. Description of a new Species of Teredo, from New 

 Bedford. Ma.is. Descriptions of two new Species of Mexican Land Shells. Synonymy of the 

 Species of Strepomaiidte., Parts 1, 2, 3, 4 and SuppUment . 

 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. Binney and Geo. W. Tryon, Jr. 

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



This is the only edition of Rafinesqiie's Complete Writings ever puljlished, and contains reprints 

 of many papers, which had been 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. 8vo, 127 pp., with plates. 1862. 



Cloth, $2.00. Paper, $1.75. 

 Contains Mouograph.s of the Families Gastrochaenidae. Pholadidae, and Teredidae. History of 

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



^*.5j. A discount of 20 per cent, will be allowed from the above prices, to Members 

 of the Conchologicnl Section and to Booksellers. Apply to 



"CoNCHOLOc.iCAL SECTION AcADEMY OP Natukal SCIENCES, Philadelphia," 

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



