OF ARTS AND SCIENCES. 299 



Professor J. P. Cooke gave a preliminary notice of some 

 determinations of the atomic weight of antimony. 



Voted, to adjourn the Stated Meeting in August to Sep- 

 tember 9. 



Six Hundred and sixtieth Meeting. 



September 9, 1873. — Stated Meeting. 



The President in the chair. 



The Corresponding Secretary read a letter from R. Clausius, 

 acknowledging his election as Foreign Honorary Member of 

 the Academy. 



Professor Joseph Levering announced that Part 2 of Vol- 

 ume IX. of the Memoirs of the Academy was now ready. 



Mr. Edmund Quincy announced that the legacy of one 

 thousand dollars ($1,000) from the late General Sylvanus 

 Thayer had been received. 



The President announced the death of Hiram Powers, 

 Associate Fellow, and of Willard Phillips, Resident Fellow, 

 of the Academy. 



It was voted that this meeting adjourn, at its close, to the 

 second Tuesday in Octobei*. 



Mr. S. P. Sharpies described some observations on the 

 water of a pond in Mebose. 



Six hundred and sixty-first Meeting. 



October 14, 1873. — Adjourned Stated Meeting. 



The President in the chair. 



The Corresponding Secretary read a letter from J. S. 

 Sylvester, acknowledging his election as Foreign Honorary 

 Member of the Academy. 



The President announced the death of Professor H. J. 

 Clark, Resident Fellow of the Academy. 



The Corresponding Secretary suggested that the published 

 form of the Proceedings should be altered ; and it Avas voted 

 to refer this matter to the Secretaries, with full power to act. 



