374 PROCEEDINGS OF THE AMERICAN ACADEMY 



" Effect of Surface Condensation upon the Expansion of 

 Gases." By Silas W. Holman. 



Professor C. L. Jackson presented the following paper by 

 title : — 



" On the Relative Replaceability of the Bromine in Para- 

 chlorbenzylbromide, Parabrombenzylbromide, and Paraiod- 

 benzylbromide." 



On the motion of Professor Cooke, it was 



Voted, That, when this meeting adjourn, it adjourn to the 

 second Wednesday in February. 



Seven hundred and twenty- eighth Meeting:. 



February 11, 1880. — Adjourned Stated Meeting. 



The President in the chair. 



Professor Lovering called attention to the following vote 

 of the Rumford Committee, presented at the meeting of the 

 Academy on December 10, 1879: — 



" Voted, That the Academy be requested to appropriate a 

 sum not exceeding five hundred dollars for the purpose of 

 enabling the Rumford Committee to obtain, by direct com- 

 parison, accurate copies of the revised original standards of 

 the French metre and kilogramme : these copies being con- 

 sidered indispensable for independent researches upon light 

 and heat in this country." 



The appropriation was voted by the Academy. 



The following gentlemen were elected members of the 

 Academy: — 



Josiah Willard Gibbs, of New Haven, to be an Associate 

 Fellow in Class I., Section 2. 



Clarence King, of Washington, to be an Associate Fellow 

 in Class II., Section 1. 



The following papers were presented : — 



" The Relation of the Architect to the Underwriter." By 

 Edward Atkinson. 



" On the Mean Free Path of Molecules." By N. D. C. 

 Hodges. 



" On Taylor's Theorem." By John Trowbridge. 



