408 PROCEEDINGS OF THE AMERICAN ACADEMY 



otherwise ; such as gas-mixtures, solids in contact with fluids, osmotic 

 forces, capilhirity, and liquid films. 



" 3 Finally, he considers the modifications introduced into the con- 

 ditions of equilibrium by electromotive forces. 



" His treatment of the subject is severely mathematical, and inca- 

 pable of being translated into common language. The formulas, how- 

 eve", are not barren abstractions, but have a physical meaning. 



' The laws of thermo-dynamics reach down to the heart of physics 

 and extend their roots in all directions. It is now understood that the 

 energy of a system of bodies depends on the temperature and physical 

 state, as well as on the forms, motions, and relative positions of these 

 bodies. The Rumford Committee congratulate the Academy on the 

 opportunity they now enjoy of awarding the Rumford Premium for 

 a contribution to physical science of far-reaching importance ; not 

 anticipating, but already realizing, the approval which this award 

 must receive from all who are conversant with the subject. 

 " For the Committee, 



"Joseph Lovering, Chairman.'^ 



The report concluded with the recommendation of the fol- 

 lowing vote, which was unanimously adopted : — 



" Voted, That the Rumford Premium, consisting of a gold 

 and silver medal, be awarded to Professor J. Willard Gibbs 

 for his researches in thermo-dynamics ; and that the Treas- 

 urer be authorized to pay for the same from the income of 

 the Rumford Fund." 



On the motion of Professor Gray, it was 



Voted, That the election of officers be postponed until the 

 adjourned meeting. 



On the motion of Professor Cooke, it was 



Voted, That, when the Academy adjourn, it adjourn to the 

 second Wednesday in June ; and that tiie election of officers 

 take place at that meeting. 



On the motion of Professor Cooke, it was 



Voted, That five hundred dollars ($500) of tlie unexpended 

 balance for last year be appropriated for tlie publication of 

 the forthcominGf volume of Proceedings. 



On the motion of JNlr. Seudder, it was 



Voted, Tluit three hundred and lii'ly dollars (-fSoO) from 



