^^4 FApril 21, 



Letters of envoy were received from the Naturforscliende 

 Gesellschaft, Gorlitz, dated Nov. 5. 1881 ; Naturbistorisclie 

 Gesellschaft, Niirnburg, Nov. 16, 1881 ; Kgl. Hof-und-Staat.s- 

 Bibliothek, Miinclien, Dec. 27, 1881 ; Meteorological Office, 

 London, March, 1882 ; Canada Geological and Natural History 

 Survey, Montreal, April, 1882 ; Department of the Interior, 

 Washington, April 7, 1882 ; Louisiana Board of Health, 

 New Orleans, March 30, 1882 ; and the Public Museum of 

 Buenos Ayres. 



Donations for the Library were received from the Acade- 

 mies at St. Petersburg, Copenhagen, Munich, Rome, and Brus- 

 sels ; Observatories at St. Petersburg, and Munich ; Geological 

 Society, Berlin; Natural History Societies at Gorlitz, Chem- 

 nitz, Nuremburg, and St. Gall ; Royal Society, Gottingen ; Zoo- 

 logical Society, Leipsig ; Royal Library, Munich ; K. K. Geol. 

 Reichsanstalt, and the Anthropologische Gesellschaft, Vienna ; 

 Herr Joachim Barrande, Prag ; Musee Guimet, Lyons ; Antliro- 

 pological, and Geographical Societies, Ecole Polytechnique, and 

 Revue Politique, Paris ; Revista Euskara, Pamplona ; L. G. 

 De Koninck, Liege ; Astronomical, Meteorological, Royal Geo- 

 graphical, Geological, and Royal Asiatic Societies, and Society 

 of Arts, London ; Geological Survey of India, Calcutta ; Glas- 

 gow Philosophical Society ; Geological and Natural History 

 Survey of Canada ; Prof. J. D. AVhitney and Prof. Alex. 

 Agassiz, Cambridge; American Antiquarian Society, Worces- 

 ter ; Prof. O. C. Marsh, New Haven ; Prof. J. Henry Corn- 

 stock, Ithaca; Capt. Jas. E. Cole, N. Y.; State Board of 

 Agriculture, Harrisburg ; Philadelphia and Reading R, R. Co. ; 

 U. S. Fish Commission, U. S. Entomological Commission, IT. 

 S. National Museum, and Census Bureau, Washington ; Louisi- 

 ana State Board of Health ; National Museum, Mexico ; and 

 the Public Museum, Buenos Ayres. 



Dr. Gross declined by letter, on account of numerous engage- 

 ments, his aj)pointment to prepare an obituary notice of Dr. 

 Pancoast. 



The death of Charles Robert Darwin, April 20, aged 73, 

 was announced by Dr. Le Conte. 



