2 CORRESPONDENCE. — 1857. 



From Kongelige Danske Vid. Selskab, Kjobenbava, Juni 1, 1856, acknow- 

 ledging receipt of publications, and transmitting tbeir own. 



From Senkenberg. Naturf. Gesellschaft, Frankfurt-am-M., Oct. 21. 1857, 

 transmitting publications. 



Aj^ril 2l6t. From Kon. Sacbs. Gesellschaft d. Wiss. Leipsic, Sept. 15, 1856, 

 transmitting publications. 



3fa>y 5tk. From Elliott Society of Nat. Historj, Charleston, S. C, acknow- 

 ledging publications. 



From Naturf. Gesellschaft, Basel, Jan. 24, 1856, acknowledging publications. 



From Kon. Sachs. Gesellschaft d. W., Leipsic, Jan. 12, 1857, acknowledging 

 publications. 



From Konigl, Bay. Akad. der Wiss., Miiucben, Feb. 3, 1857, acknow- 

 ledging publications, and desiring missing numbers. 



From Rev. J. C. Adamson, D. D., New York, April 29, 1857, asking exchange 

 of publications, &c., with the Museum of Cape Town, Africa. 



From Col. J. J. Abert, Washington, D. C, April 28, 1857, referring to a sup- 

 posed new species of Mocking-bird. 



3Ia)j 12th. From Boston Society of Nat. History, May 4, 1857, acknowledging 

 publications. 



From Ethnological Society, London, Jan. 31, 1857, acknowledging publica- 

 tions. 



Maij I9th. From Societe Royale des Sciences a Upsal, Nov. 10, 1856, trans- 

 mitting publications. 



From Societe Imp. des Naturalistes de Moscou, Juin 12-24th, 1856, transmit- 

 ting publications. 



From Konigl. Bay. Akad. der Wiss., Miinchen, Feb. 4, 1857, transmitting 

 publications. 



From Konigl. Bohm. Gesellschaft der Wiss., Prag, Jan. 12, 1857, transmitting 

 publications. 



From Acad. Royale des Sciences, Amsterdam, Aout 27, 1856, transmitting 

 publications. 



From Wiirtemb.Naturw. Geselleschaft, Dec.20, 1856,transmitting publications. 



From Konigl. Bohm. Gesellschaft der Wissenschaften, Prag, Jan. 12, 1857, 

 acknowledging publications and desiring missing numbers. 



From Wiirtemb. Naturw. Gesellschaft, Dec. 20, 1856, acknowledging publica- 

 tions and desiring missing numbers. 



June 2d. From J. C. Brown, dated Philadelphia, June 1, 1857, acknowledging 

 his election. 



From Imperial Mineral. Society, St. Petersburg, Nov. 30, 1855, acknowledging 

 receipt of publications, and transmitting theirs in exchange. 



From Naturf. Gesellschaft in Emden, Jan. 21, 1856, acknowledging receipt of 

 publications and transmitting their own. 



From Geol. Society of London, dated Dec. 4, 1856, acknowledging publications. 



From I. R. Istituto Lombardo di Scienze, Lettere ed Arti, Milano, Juglio 29, 

 1856. 



June 9(h. From E. P. Eastwick, dated June 8, 1857, acknowledging his 

 election. 



June IGt/i. From K. L. C. Akad. d. Naturforscher, Breslau, Miirz 4, 1857, ac- 

 knowledging publications. 



From Societe Imperiale des Naturalistes, Moscou, Mars 10-22d, 1857, acknow- 

 ledging publications. 



From Utrecht Society of Arts and Sciences, March 30, 1857, acknowledging 

 publications. 



From K.-K, Geol. Reichsanstalt, Wien, Jan. 21, 1857, acknowledging publica- 

 tions and transmitting their own. 



From Verein fiir Naturkunde in Hm. Nassau, Wiesbaden, Jan. 3, 1857, trans- 

 mitting publications and desiring exchange. 



Jime 23d. From Naturw. Verein in Hamburg, Jan. 1, 1857, acknowledging 

 publications. 



From Amer. Antiquarian Society, June 19, 1857, acknowledging publications. 



