PROCEEDINGS. 



Eight hundred and fifty-ninth Meeting. 



May 10, 1893. — Annual Meeting. 



The President in the chair. 



The Corresponding Secretary read the following letters : 

 from the Central Physical Observatory, St. Petersburg, 

 announcing the celebration of the twenty -fifth anniversary 

 of the Directorship of H. Wild, on the 10th of May ; from 

 C. de Candolle, announcing the death of his father, Alphonse 

 de Candolle, a Foreign Honorary Member of the Academy, 

 who died at Geneva on the 4th of April, in the eighty- 

 seventh year of his age ; from the Natural History Society of 

 Rhineland, Westphalia, and Osnabruck, inviting the Acad- 

 emy to attend its fiftieth anniversary on the 24th of May ; 

 from the Physical-Mathematical Section of the University of 

 Kasan, announcing its intention to establish a prize in the 

 name of Lobatcheffsky for researches in mathematics, or to 

 place a bust in the building of the University, and soliciting 

 subscriptions ; from the Smithsonian Institution, transmitting 

 a circular relating to the Hodgkins Prize ; and from Samuel 

 Cabot, John Elliott Pillsbury, and John Henry Wright, 

 accepting membership in the Academy. 



The Corresponding Secretary presented the Report of the 

 Council. 



The reports of the Treasurer and the Librarian were read 

 and accepted. 



The following report was read : — 



