386 PROCEEDINGS OF THE AMERICAN ACADEMY 



" The Committee have authorized the payment by the Treasurer of 

 the following sums out of the income of the Rumford Fund : — 



To Professor Trowbridge for apparatus, &c., for 



magnetic experiments, $97 65 



To Dr, Gibbs for a new dynamo-machine, . . . 115 86 

 To Professor Langley for apparatus, &c., ... . 300 00 

 To Mr. Edmands for work on Rutherfurd's photo- 

 graph, 4 31 



To Mr. Edmands for work on spectrometer, . . 30 00 

 To Philadelphia Mint for medals (including en- 

 graving and case), 359 79 



To Mr. Edmands for work on Atmospheric Re- 

 fraction, 24 36 



Total, $931 97 



" The Committee have also authorized the payment from the Rum- 

 ford Fund of that portion of Mr. Wilson's bill, amounting to $286.23, 

 which is charged for the printing of the papers 1, 2, 7, 10, 13, 18, 21, 

 and 22, in Volume XVI. of the Proceedings of the Academy, these 

 being on subjects connected with Light or Heat ; and also the pay- 

 ment of $400.00, at the order of the Librarian, for the purchase of 

 books on Light or Heat. 



" Respectfully submitted, 



"Joseph Lovering, Chairman. 

 " Boston, June 8, 1881." 



In accordance with the recommendation of the Rumford 

 Committee, one thousand dollars ($1000) were appropriated 

 from the income of the Rumford Fund for investigations on 

 Light and Heat during the current year. 



On the motion of the Treasurer it was 



Voted, to appropriate : — 



For publishing Proceedings, .... $1100 



For publishing Memoirs, 900 



For Books and Binding, 1250 



For General Expenses, 2200 



$5450 

 TRe following paper was presented by title : — 

 " Eclipses of Jupiter's Satellites." By Edward C. Piokering. 



