CORRESPONDENCE. 239 



Directenr du Jardin Imperial Botanique, St. Petersbourg. 

 Sociedad Mexicana de Historia Natural, Mexico. 

 Naturwisseuschaftliclie Verein zu Bremen. 

 Konigliche offeutliche Bibliothek zu Dresden. 

 Die Kaiserliche Universitats und Landes Bibliothek, Strasburg. 

 Das Bibliothekariat der Konigliche Bayerische Akademie der Wisson- 

 schaften. 

 Societe Entomologique de Russie, St. Petersburg. 

 Die Konigliche Gesellschaft der Wissenschaften zu Gottingen. 



April. Belfast Nat. History Society ; 

 Lyceum of Natural History, New York ; 



Yale College, New Haven ; severally acknowledging receipt of publica- 

 tions, 



Hurd & Houghton, with circular. 



Geological Survey of India, Calcutta, with publication. 



Dorpater Naturforschende Gesellschaft, Dorpat. 



Die Koniglich Sachsische Gesellschaft der Wissenschaften. 



Konigl. Universitats Bibliothek, Kiel. 



M. Mouillefarine, Paris. 



Dr. Fred. Stein, Berlin. 



May. American Acad, of Arts and Sciences, Boston ; 



Philosophical Society of Glasgow; 



Lyceum of Natural History, New York; 



Royal Society of London; 



Essex Institute, Salem ; severally acknowledging receipt of publications. 



D. G. Brinton, with resignation as a member. 



Smithsonian Institution, Washington, soliciting a loan of specimens re- 

 lating to the Ethnology of the Esquimaux. 



Liverpool Free Public Library, Museum, and Gallery of Arts, with pub- 

 lication. 



Hammond Dugan, in relation to a picture. 



Universite Catholique de Louvain. 



Academie Royale des Sciences de Lisbonne. 



Academie Royale des Sciences a Amsterdam. 



L' Institute Royal Meteorologique des Pays-Bas, a Utrecht. 



Societe Hollaudaise des Sciences a Haarlem. 



Auftrag der Naturforschenden Gesellschaft, Ziirich. 



June. Royal Geological Society, Dublin ; 



Harvard College, Cambridge; 



Essex Institute, Salem ; severally acknowledging receipt of publications. 



New Jersey Commissioners of Fisheries, Bloomsbury, N. J. , with an in- 

 vitation to view the mode of hatching spawn. 



Smithsonian Institution, M'ith specimens for museum, and acknowledging 

 receipt of publications. 



Prof. James Orton, in reference to a bill for proceedings. 



Wm. Holden, desiring a copy of Hentz' Notice concerning a spider. 



