VALUABLE WORKS ON CONCllOLOGY 



1. American Journal of Conchology, Vol. 1, 1865. Containing 400 

 pages, illustrated by .31 colored and plain lithographic plates anii ])or- 

 traits and over 293 wood engravings; with comrihutions by Conrad, Bland, 

 Anthony, Binney, Newcomb, Stimpson, W. Harper Pease, Wheatley, 

 Tryon, etc. Price, in numbers, $12. .50, or each number S'-parately $3.75. 

 A few copies beautiful!}' bound in red morocco, gilt, red edges, at $15. 



2. American Journal of Conchology, Vol. 2, 186G. TontHining 400 

 pages, illustrated by 27 colored and plain lithogra])hic plates, and nearly 

 500 wood engravings ; with contributions by Newcomb, Bland, Conrad, 

 Gabb, Anthony, Pease, P. P. Carpenter, .Morch, Tryon, etc. Price in num- 

 bers, $12.50, or each number ^ep irately $3.75. 



^*^Full tables of contents of the above two voluuns forwarded to those 

 desiring them. 



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

 With illustrations of ail the Species. By George W. Tryon, Jr. Thi.s 

 work will be completed in five ijuarteidy parts, each containing about 

 32 pp. 8 vo. text, and four lithographic plates crowded with figures. 

 Three parts have been published Only loO copies will be printed, so 

 that an early application will be necessary to secure it. There are already 

 about 60 subscribers. The work is published in the following styles: 

 1st. Plain edition, pointed onfiiiecal ndered paper, wiih uncolored plates, 



at $1 25 per pan. 



2nd. Colored edition, same paper, plates fiinly colored, $2.00 per part. 



3J. Fine edition, on very heavy plate paper, with duplicate jilates, plain 



or tinted paper, and finely colored, $3.00 per jiart. 



4. TRYON, GEO. W, Jr. Synonymy of the Species of Strepomatidae 

 (iMelanians) of the Uni':ed States, with critiial observations on tiuir 

 Atlinities, and Descrii>ti.jns of Land, PVesh Water and .Marine .Mollusca. 

 8 vo., over 100 pp., with lithograpiiic plates. 1865. 



Cloth, $2 00. Paper, $1 75 



CONTE.NTS: Contributions low irdi a M<iHftgniph!J rif the Or/lir PUohidarra. with Desrriplious 

 of nr.io Specifs. Dfxcription-: of two new i^p^fies of Fre.fti WatT Mollusca from Funiinii 

 Description of a mw Exntic Milania. Descriptions of ww Species nf Fresh Waier Mollusca, 

 biionging to the fimilies Amnicolidse, Valvutiilir an I Linuuridii ; in'ialittintj Cilifornia. De- 

 scription of a new Specv'S of DIeuroccr i. Descriplion of a ii<iv .Sj erirs of Teredo, from JVeiv 

 B.'d/'ord. Mass. Descriptioijs of trvi new Sjie.cies of Mexican Land i^hells. Synunyniy of llie 

 Species of Strepomatidif, J'arts 1, 2, 3, 4 and Supplement. 

 The Edition i.s very limited — only 75 eopie.s. Early application will, tlierefore, be neeeis- 



.«ary to secure the work. 



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

 Conchology. fidited by William G. Binney and Geo. W. Tryon. Jr. 

 8vo. 1864. With lithographic platei?. " Price, $2 50 



This is the only edition of Rafiiiosque's Complete Writings ever published, and contains- 

 reprints of many papers, whii'h luid been entirely forgotten Vjy naturalists. 



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

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

 8vo. 1860. Printed on fine plate paper. Cloth, $2 00. Paper, $1 75 



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



and other Paper*. 8vo., 127 pp., with plates. 1862. 



Cloth, $2 00. Paper, $1 75 



Contains Monographs of the Families G.vstrochaenide, Pholadidae, and Teredidap. His- 

 torv of American Conchology, and descriptions of new Species of Fresh Water and Marine 

 S hells. 



^*^ .4 dhcJunt of 20 p^r c^n'. will be alloiv;<i from the above prices, to Membem 

 of the Cjnchilojical Section and to B >ok.iellers. Appbj to 



"CovcHOLOGiCAL Sectio.v Acvdev(y OF NATURAL ScisxcEs, Philadelphia," 

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



