OF ARTS AND SCIENCES. 385 



" Researches on the Compound Inorganic Acids." Paper 

 No. 3. By Wolcott Gibbs. 



" Spectra of Celestial Objects." By Edward C. Pickering. 



Seven hundred and forty-third Meeting. 



June 8, 1881. — Adjourned Annual Meeting. 



The President in the chair. 



The President appointed the following standing commit- 

 tees : — 



Committee of Publication. 



Alexander Agassiz, Josiah P. Cooke, 



John Trowbridge. 



Committee on the Library. 



Henry P. Bowditch, William R. Nichols. 



Edward C. Pickering. 



Auditing Committee. 

 Henry G. Denny, Robert W. Hooper. 



The Chairman of the Rumford Committee presented the 

 following Annual Report : — 



"Daring the last year (May 1880-May 1881) investigations have 

 been made by members of the Committee, individually or collectively, 

 on the Magnetizing and Demagnetizing of Metals ; on Atmospheric 

 Refraction ; on the Dynamo-electric Machine ; and by Professor 

 Langley on Radiant Energy, with his new instrument, the Bolometer. 

 Mr. Edmands has been employed to do some additional work on the 

 measurements of Rutherfurd's Photographic Spectrum, and on a com- 

 parison of observations with the spectrometer. 

 VOL. XVII. (n. s. IX.) 25 



