G20 PROCEEDINGS OP THE AMERICAN ACADEMY 



appropriate the sum of two hundred and fifty dollars (1250) 

 from the income of the Rumford Fund to Arthur L. Clark, of 

 Worcester, to aid in the prosecution of researches on the prop- 

 erties of vapors near the critical point. 



W. M. Davis read a paper entitled " The Freshwater Tertiary 

 Formations of the Rocky Mountain Region." 



The following papers were presented by title : — 



Contributions from the Cryptogamic Laboratory of Harvard 

 University XLII. : Preliminary Diagnoses of New Species of 

 Laboulbeniacese. — II. By Roland Thaxter. 



The Driving Energy of Physico-chemical Reaction and its 

 Temperature Coefficient. By Theodore W. Richards. 



Supplementary Note on the Chief Theorem of Lie's Theory of 

 Finite Continuous Groups. By Stephen Elmer Slocum. Pre- 

 sented by Henry Taber. 



On the Singular Transformations of Groups generated by 

 Infinitesimal Transformations. By Henry Taber. 



