P U 15 L I C A T I X S 



OF 



THE ACADEMY OF NATURAL SCIENCES 



OF PHILADELPHIA. 



Five volumes of the New Series of the Jourmil and Part III. of Vol. 6 (Quarto) 

 have been issued, — 1847 to 1868. The price per volume of four parts is $10.00, 

 ■or $3.00 per part to subscibers ; and to others, $16.00 per volume, or $3.75 

 per part. 



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

 be obtained at $24.00, or for separate volumes $3.25 per volume. 



The First 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 $24.00, to members ; and to the public, $30.00. 



The Second Se-iesof the Proceedings, commencing Jan. 1, 1857, (of which 

 twelve volumes were completed Dec. 31, 1868,) may be obtained at $33.00, 

 to members, or $3.00 per volume separately ; and to the public, $3.75 per 

 volume. These are now published monthly at $3.00 per annum, payable in 

 advance, to members ; and to the public, $3.75. 



Tne Society has established a Publication Fund; any person who may coa- 

 ■tribute the sum of $75, will receive, during life, the Journal, quarto, and the 

 ■Proceedings, octavo ; or separately, the Journal $50, and the Proceedings $25. 



BOOKS FOR SALE. 



The Academy have a few copies of th^ following rare works, for sale at the 

 prices affixed. 



Michaux' North American Sylva, 2 vols, octavo, Philadelphia, 1841, with 156 

 iincolored plates, $10.00. 



Monograph of the Unionidae of North America, by T. A. Conrad. Complete 

 •with 60 colored plates, octavo, 1840, $8.50. 



Fossils of the Tertiary Formation of the United States, by T. A. Conrad. 

 Complete, with 49 plates, octavo, 1838, $5.00. 



Description of Shells of North America, with 68 colored plates, by Thos.Say, 

 1830—34, $10.50. 



Notice to Booksellers. — All the Publications of the Society will be sup- 

 plied to Booksellers at a disco mt of 20 per cent, on the prices charged to the 

 public. 



Application to be made to Wm. S. Vaox, Chairman of the Publication Com- 

 mittee, 1700 Arch Street, or to the Librarian, at the Hall of the Academy, cor- 

 ■ner of Broad and Sansom Sts. 



fiowrfon, TRUBNER & CO., 

 I No. 60 Paternoster Row. 



Agents, \ 



I New York, WM. WOOD & CO., 

 L No. 61 Walker St. 



Jamiarii, 18C9. 



