PUBLICATIONS OF THE 



ACADEMY OF NATURAL SCIENCES 



OF PHILADELPHIA. 



Eight volumes of the New Series of the Jouisnal and Parts 1 and 2 of volume IX (Quarto) 

 have been issued — 1847 to 1888. The price per volume of four parts is $10, ro S3 per part to 

 subscribers; and to others .$12.50 per volume, or §3.75 per part. Vol. VII ocntains "The 

 Extinct Mammalian Fauna of Dakota and Nebraska, with a Synopsis of the Mammalian 

 Remains of North America." Illustrated with thirty plates. By Joseph Leidv, M. D., LL. D. 



The First Series of the Journal, 1817 to 1842, in eight volumes, octavo, may be 

 obtained at $40 to members, and to the public, $48. 



The First Series ok the Proceedings of the Society, published in octavo, 1841 to 

 1856, of which eight volumes were completed Dec. 31, 1856, may be obtained at $24 to 

 members; and to the public, $30. 



The Second .Series of the Proceedings, commencing .January 1, 1857 (of which 

 fourteen volumes were completed Dec. 31, 1880), may be obtained at $42 to members, or $3 

 per volume separately ; and to the public, $3.75 per volume. 



The Third Series of the Proceedings, illustrated, commencing January 1, 1871 

 (of which twenty volumes were completed Dec. 31, 1890), is published at $5 per annum, payable 

 in advance, to subscribers ; single volumes, $6.25. 



American .Journal op Co.nchologv, 1865 — 71. Seven vols., Svo. Containing 2500 

 pages, illustrated by one hundred and fifty plates, many of them colored, besides about a 

 thousand wood engravings. Published at $70. Price reduced to $42 for the set. Separate 

 volumes, $10 each. 



The Academy has the following works forsale at the prices affixed : 

 Description of Shells of North America, with 68 colored plates. By Thomas Say. 



1830-34. $10.50. 

 Monograph of the Terrestrial Mollusca of the U.nited States. With illustrations 



of all the species. By Geo. W. Tryon, Jr. Fine edition, plattj paper, with duplicate 



plates, colored and tinted, $20; colored edition, $13.50; plain edition, «$8. 50. Only 



one hundred copies printed, which have been mostlj' sold. 

 Monograph of the Fresh Water Univalve Mollcs(;a of the United States. By S. S. 



IIaldeman, 1840-44. With Continuation to 1871. By Geo. W. Tryon, Jr. 2 



vols., with many colored plates. Fine edition, duplicate plates, $40 ; with colored ■ 



plates, $25; with plain plates, $18. 



Either the original work or the continuation furnished separately, if desired. 

 Synonymy of the Species of Strepomatid^ (Melanians) op the United States. By 



• Geo. W. Tryon, Jr. Cloth, $2 ; paper, $1.75. 

 List of Americas Writers on Recent Conchology, with the Titles of their Memoir,^ 



and Dates of Publication. By Geo. W. Tryon, Jr. Cloth, $2; paper, $1.75. 

 Monograph of the Ohder Pholadacea and other Papers. By Geo. W. Tryon, Jr. 



Cloth, $2; paper, $1.75. 

 Complete Writings on Recent and Fossil Conchology of C. S. Rafinesqce. Editcil 



by Wm. (t. Binnky .and G. W. Tryon, Jr. .$2.50. 

 Ohseisvations on the Genus Unio. By Isaac Lea, LL. D. 4to, Vols. 1 to 13. With 



Index. Nos. 1, 2 and 3, complete. Illustrated with several hundred fine lithographic 



Plates. $60. 



Same, Vols. 2 to 13 inclusive, except Vols. 4 and 12. Each volume separately, $5. 

 Synopsis of the Genus Unio. By Isaac Lea, LL. D. Fourth edition. $5. 

 Contributions to Geology. By Lsaac Lea. .$3. 

 Fossil Foot-Marks. By Isaac Lea. Large folio, text and plate. $2. 



Same, plate alone. 50 cents. 



Notice to Booksellers — AH the publications of the Society will be supplied to 

 Booksellers at a discount of 20 per cent on the prices charged to the public. 



Application to be made to Edward J. Nolan, M. D., at the Hall of the Academy, 

 l.ogan Square. 



I'ebriiary, iSgi. 



