OP ARTS AND SCIENCES. 19 



Four Iiuiidred and forty-seventli meeting. 



January 27, 1858. — Stated Meeting. 



The President in the chair. 



The Corresponding Secretary read the following letters, 

 viz. : — From the Director of the Observatory of Breslau, 

 March 2, 1857 ; Naturhistorischer Verein, Bonn, April 20, 1857 ; 

 Royal Society of Sciences at Upsal, May 18, 1857 ; Zoolo- 

 gisch-Botanischer Verein, Vienna, June 23, 1857 ; Academic 

 Royale des Sciences de Stockholm, July 10, 1857; Royal 

 Society of London, August 6, 1857 ; Royal Observatory, 

 Greenwich, August 8, 1857 ; Societe des Arts et des Sciences 

 de Batavia, October 20, 1857 ; and the Society of Arts, Manu- 

 factures, and Commerce, London, November 19, 1857. ac- 

 knowledging the receipt of the publications of the Academy 

 — from the Naturhistorischer Verein, Bonn, April 20, 1857 

 Academic Royale des Sciences de Stockholm, July 10, 1857 

 and the Royal Observatory, Greenwich, December 3, 1857, pre- 

 senting their various publications ; — also from the Zoologisch- 

 Bctanischer Verein, Vienna, June 10, 1857, presenting its 

 Transactions, and acknowledging the receipt of the Acad- 

 emy's publications. 



Professor Agassiz presented a paper by Professor J. D. Dana, 

 entitled, " On a Medusa of the Family related to Stepha- 

 nomia," accompanying it with some observations of his own. 



Mr. Sherwin exhibited a Ley den jar, showing curious 

 figures on its upper surface, caused by the explosion of gun- 

 powder upon it by electricity. 



Dr. A. A. Hayes gave an account of the probable cause of 

 the recent death from the combustion of gas in Davis's gas- 

 stove. His remarks were followed by a conversation on the 

 general subject of noxious gases, as exhaled from the ground, 

 or otherwise generated, in which the President, Professor 

 Rogers, Dr. Weinland, and Mr. F. H. Storer took part. 



