273 



Mr. Webster's Vindication of the Treaty of Washington of 1842; in 

 a Speech delivered in the Senate of the United States, on the 6th 

 and 7th of April, 1846. 8vo. — From the Author. 



Reports of the Joint Special Committee appointed by the Select and 

 Common Councils of Philadelphia, to consider the Petitions and 

 Communications relative to the Pennsylvania Rail-road Com- 

 pany, July 2d, 1846. 8vo.— From Mr. S. W. Roberts. 



ADDITIONS TO THE LIBRARY BY PURCHASE. 



Comptes Rendus Hebdomadal res des Seances de I'Academie des 

 Sciences. Tome XXII. Nos. 13 to 16, inclusive. 30th of March 

 to 20th of April, 1846. 4to. Tables des Comptes Rendus, 

 Deuxieme Semestre, 1845. Tome XXI. 



Annales de Chimie et de Physique. Troisieme Serie. Mai, 1846. 

 Tome XVII. 8vo. 



Niles' National Register, containing Political, Historical, Geographi- 

 cal, Scientifical, Statistical, Economical, and Biographical Docu- 

 ments, &c. From March to September, 1845. Vol. 68. From 

 September, 1845, to March, 1846. Vol. 69. Folio. 



Dr. Patterson, from the Committee to whom was referred 

 the paper of Captain Stockton, U. S. N., read at the last meet- 

 ing, and relating to experiments in gunnery made by that gen- 

 tleman, reported in favour of its publication in the Transactions 

 of the Society. It was so ordered, and the Committee dis- 

 charged. 



The obituary notice of Mens. Nicollet, prepared by Colonel 

 Abert, was read by the Secretary. On motion of Dr. Patter- 

 son, it was directed to be deposited among the archives of the 

 Society. 



A letter addressed to the President of the Society, by Mr. 

 Chauncey, dated June 26, 1846, and referring to a communi- 

 cation, entitled "On a Parallatic Eye-piece," forwarded to the 

 Society by a candidate for the Magellanic Premium, was read. 

 Dr. Patterson stated that the paper had been examined, and 

 that one of the Secretaries had communicated indirectly with 

 the author. 



The attention of the Society was drawn by Dr. Bache to a 

 paper, in the Philosophical Magazine, by Messrs. Binney and 

 Harkness, on three fossil trees, termed, by geologists, sigilla- 



