PROCEEDINGS. 



Eight hundred and thirteenth Meeting. 



May 29, 1888. — Annual Meeting. 

 The President in the chair. 



In the absence of the Recording Secretary, Mr. Henry W. 

 Haynes was appointed Recording Secretary pro tempore. 



The report of the Council was read by the Corresponding 

 Secretary. 



The Treasurer's report was read by Mr. Augustus Lowell, 

 accepted, and'placed on file. 



The Librarian's report was read by Mr. Henry W. Haynes, 

 accepted, and placed on file. 



The report of the Rumford Committee was read by the 

 President as follows. 



The Rumford Committee present the following report for 

 the year ending May 29, 1888 : — 



An appropriation of $250 was recommended by the Com- 

 mittee, and voted by the Academy, to assist Professor 

 Trowbridge in his investigations on metallic spectra. The 

 committee have approved of bills amounting to 8219.72 for 

 printing in the Memoirs or Proceedings of the Academy 

 papers on the subjects of Light or Heat. 



After mature deliberation, the Committee have voir.] 

 unanimously to recommend to the Academy the award of the 

 Rumford Medals to Professor Albert A. Michelson for his 

 determination of the velocity of light, for his researches upon 

 the motion of the luminiferous ether, and for his work on the 



