PROCEEDINGS 



AMERICAN PHILOSOPHICAL SOCIETY. 



Vol. II. NOVEMBER & DECEMBER, 1841. No. 20. 



Stated Meeting, Nov. 5. 



Present, thirty-three members. 



Dr. Patterson, Vice President, in the Chair. 



Letters were received and read: — 



From the Royal Society of Gottingen, dated April 20,1841, — 

 the Royal Society of Copenhagen, dated 3d May, 1841, — the 

 Royal Academy of Inscriptions and Belles-Lettres, Institute of 

 France, dated 20th August, 1841, — the Royal Academy of 

 Sciences, Institute of France, dated 23d August, 1841, — and 

 the Royal Geological Society of Cornwall, dated Penzance, 

 25th Sept, 1841 ; severally acknowledging the receipt of copies 

 of the Transactions and Proceedings of the Society, and trans- 

 mitting donations to the Library: — 



From the Secretary of the London Electrical Society, dated 

 7th July, 1841, presenting the entire series of the Transactions 

 and Proceedings of that Society: — 



From Mr. Charles Nagy, dated Vienna, 10th March, 1841, 

 accompanying donations to the Library, and referring to ex- 

 periments, making under his direction, with the invariable 

 pendulum :— 



From Professor Palfrey, dated Boston, 2Sth Sept. 1841, pre- 

 senting a copy of his Lectures. 



The letter of Mr. Nagy was referred to a committee. 



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