OF ARTS AND SCIENCES. 



» 



1857, Royal Society of Sciences, Gottingen, April 18, 

 1857, K. L. C. Akademie der Naturforscher, Breslan, May 

 4, 1857, Societe Imperiale des Naturalistes de Moscou, 

 Moscow, March 22, 1857, and the Academy of Natural 

 Sciences of Philadelphia, June 19, 1857, acknowledging the 

 receipt of the Academy's publications ; from the Socidte de 

 Geographic a Paris, February 7, 1857, and the Academy of 

 Natural Sciences, Philadelphia, June 19, 1857, acknowl- 

 edging the same, and requesting that missing parts may be 

 supplied ; from the Kaiserlich-Konigliche Geologische Reichs- 

 anstalt, Wien, January 1, 1857, and the Societe Royale des 

 Sciences a Upsal, presenting their publications; from the 

 Superintendent of the Geological Survey of India, &c., Jan- 

 uary, 1857, presenting the Memoirs of the Survey, and re- 

 questing an exchange ; from the Verein fiir Naturkunde im 

 Herzogthum, Nassau, May 1, 1857, presenting its transac- 

 tions, and asking an exchange ; and the Comet Circular of 

 July 28, 1857, from Dr. C. H. F. Peters, at Albany, N. Y. 



Dr. Charles T. Jackson made some statements concerning 

 the various kinds of marble now being used in the govern- 

 ment buildings at Washington, and incidentally spoke of the 

 chemical action in different kinds of lime and cement. 



Dr. Weinland spoke of the lime in use in Hayti, as en- 

 tirely made from the shells of Strombus gigas. 



Professor Felton announced to the Academy the organiza- 

 tion of an Academy of Arts and Sciences at Athens. 



The requisite quorum for the transaction of the proper 

 business of a stated meeting not being present, on motion of 

 Professor Treadwell, it was voted that the next regular meet- 

 ing be an adjournment of the present one. 



Four buudred aud fortysecond ineetiu§^. 



September 8, 1857. — AdjouRx\ed Stated Meeting. 



Professor Treadwell, Vice-President, in the chair. 

 Professor Guyot addressed the Academy at considerable 



