, PUBLICATIONS OF THE 
ACADEMY OF NATURAL SCIENCES 
OF PHILADELPHIA. . 
1 C ‘F® ^"®"’ Series of the Journal and Part 2 of Volume IX (Quarto) have been issued 
— 1»47 to 1S8S. I hejjnce per volume of lour parts is $10, $3 per part, to suhseribers; and to others, $12.50 
per volurne, or $3.7o per part. Vol. \ II. contains “ The Extinct Mammalia Fauna of Dakota and Ne- 
braska, with a .Syimpsis of the Mammalian Remains of North America.” Illustrated with thirty plates. 
By Joseph Lkidy, M.I)., LL.U. 
The Fiust SEiiiE.s or the Journal, 1817 to 1842, in eight volumes, octavo, may be obtained at $40 to 
members, and to the public. $48. 
^ The Fihst Series of 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; to the public, $30. 
The Second Series of the Proceedings commencing January 1, 1857 (of whicii fourteen volumes 
were completed Dec. 31, 1870), may be obtained at $42 to members, or $3 per volume separately; and to 
the public, $3.75 per volume. 
The Tiiikd Series of the Proceedings, Illustrated, commencing January 1, 1871 (of which eighteen 
volumes were completed Dec. 81, 1888), is published at $5 per annum, payable in advance, to subscribers ; 
single volumes, $i).25. 
A.meuic.i.s .Journ.m. of Conchology, 1865-1871. Seven vols., Svo. Containing 2500 pages, illustrated 
by one hundred and lifly plates, many of them colored, besides about a thousand wood engravings. Pub- 
lished at .$70. Price reduced to $42 for the set. Separate volumes, $10 each. 
BOOKS FOR SALE. 
The Academy inis the following ivorks for sale at the prices affixed : 
Descuiition of Shells of North America, with 68 colored plates. By Thomas Say. 1830-44. $10.50. 
Monogkarh of the Terre.striai. Mollusca of the Fnited States. , With illustrations of all the species. 
By Geo. W. Tryon, Jr. Fine* edition, plate paper, with duplicate plates, colored and tinted, $20 ; 
colored edition, $18.50; plain edition, $8.50. Only one hundred copies printed, which have been 
mostly sold. 
.Monograrh of the Fresh Water Univalve Mollusca of the United States. By S. S. Haldeman, 
1840 _.t.l, With Continuation to 1871. By Geo. W. Tryon, Jr. 2 vols., with many colored plates. 
Fine addition, duplicate plates, $40 ; with colored plates, $25; with plain plates, $18. 
Either the original work or the continuation furnished seiiiirately, if desired. 
.Synonymy of the Species of Strepomatid'u (Melanians) of the United States. By Geo. W. Tryon, Jr. 
Cloth, $2; paper, $1.75. , i 
List of American Wkiter-s on Recent Conchology, with the Titles of their Memoirs and Dates of Pub- 
lication. By Geo. W. Tryon, Jr. Cloth, $2; paper, $1.76. 
Monograph of the fiRDER Pholadacea and other Paper.s. By Geo. W. Tryon, Jr. Cloth, $2, paper, $1. in. 
Co.mi'i.ete Writings on Rixent and Fossil Conchology of C. S. Rafinesque. Edited by Wm. G. 
Binney and G. W. Tryon, Jr. $2.50. ^ ^ „ , 
Ohservations 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, $6. 
Sy.nopsis of Genus Unio. By Isaac Lea, LL.D. Fourth edition. $5. 
Contributions to (?eology. By I.saac Lea. $3. . , ' 
Fossil* Foot-Marks. By Isaac Lea. Large folio, text and plate, ijii. 
. Same, plate alone. 5.0 cents. 
Notice to Booksellers.— All the publications of the Society will be supplied to Booksellers at a dis- 
“''Ap°Jli?roUo"te“a!iehK™(»Tyow 
and Race Streets. 
July, 1888. 
