PUBLICATIONS OF THE 
ACADEMY OF NATURAL SCIENCES 
OF PHILADELPHIA. 
Eight volumes of the New Series of the Jouknal and Parts 1, 2 and 3 of Volume IX (Quarto) 
have been issued 1847 to 1892. The price per volume of four parts is 810, 83 per part to subscribers, 
and to others 812.50 per volume, or $3.75 per part. Vol. VII. contains “ The Extinct JIamnialian 
Fauna of Dakota and Nebraska, with a Synopsis of the Mammalian Remains of North America.” 
Illustrated with thirty plates. By Joseph Leidy, M.D., LL.D. 
The First Series of the Joptenal, 1817 to 1842, in eight volumes, octavo, may be obtained at 
$40 to members, and to the public, $48. 
The FrR.ST Sebie.9 of the Pboceeuings of the Society, published in octavo, 1 841 to 1856, of which 
eight volumes were completed Dec. 31, 1856, may be obtained at 824 to members; to the public 830. 
The Second Series of the Proceedings commencing January 1, 1857 (of which fourteen 
volumes were completed Dec. 31, 1870), may he obtained at 842 to members, or S3 per volume sepa- 
rately ; and to the public, $3.75 per volume. 
The Third Series of the Proceedings, illustrated, commencing January 1, 1871 (of which 
twenty-one volumes were completed Dec. 81, 1891), is published at $5 per annum, payable in advance, 
to subscribers : single volumes, 86.25. 
American Journal of Conchology, 1865-1871. Seven vols., 8vo. Containing 2500 pages, 
illustrated by one hundred and fifty plates, mauy of them colored, besides about a tliousand wood 
engravings. Published at $70. Price reduced to $42 for the set. Separate volumes, 810 eacli. 
BOOKS FOR SALE. 
The Academy has the following works for sale at the prices affixed : 
Description OF Shells OF North America, with 68 colored plates. By Thomas Say. 1830-44. 
$10.50. 
Monograph of the Terrestrial Moli.usca of the United States. 'With illustrations of all tln‘ 
species. By Geo. W. Tryon, Jr. Fine edition, plate paper, with duplicate jdatc-s colored and 
tinted, $20; colored edition, $13.50; plain edition, $8.50. Only one hundred copies printed, 
which have been mostly sold. 
Monograph of the Fresh Water Univalve Mollusca of thf. United States. By S. S. IIai.dk- 
MAN, 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 jilates, $18. 
Either the original work or the continuation furnished separately, if desired. 
Synonymy' of the Species of Strepomatidas (Melanians) of the United Statf>i. By Gro. W. 
Tryon, Jr. Cloth, $2; paper, $1.75. 
List of American Writers on Bkcent Conchology, with the Titles of their Memoirs and Dates of 
Publication. By Geo. W. Try' on, Jr. Cloth, $2 ; paper, $1.75. 
Monograph of the Order Piioladacea and other Papers. By Geo. W. Tryon, Jr. Cloth, i>2, 
paper, $1.75. . ■ , i 
Complete Writings on Kecent and Fossil Conchology of C. S. Rafisesque. I-alitcd by W .m. 
G. Binney and G. W. Try'ON, Jr. $2.50. 
Observe AT ioNS of the Genus Unio. By Isaac Lea, UL.D. 4to, Vols. 1 to 1 3. M ith Index, Nos. 1 , 
2 and 3 complete. Illustrated with several hundred fine lithographic plates. 860. 
Same, Vols. 2 to 13, inclusive, except Vols. 4 and 12. Each volume separately, S5. 
Synopsis of CIenus Unio. By Isaac Lea, LL.D. Fourth edition. $5. 
Contributions to Geology. By Isaac Lea. $3. 
Fossil Foot-Marks. By Isaac Lea. Large folio, text and plate. $2. 
Same, plate alone. 50 cents. 
Notice to Booksellers. — All the publications of the Society will be suj>idied to Bookindlcrs at 
a discount of 20 per cent, on the prices charged to the public. 
Application to be made to Edward J. Nol.an, M. D., at the hall of the Academy, corner of 
Nineteenth and Race Streets. 
October, 1892. 
