720 PROCEEDINGS OF THE AMERICAN ACADEMY. 



*' Notes on the Electrical Conductivity of Argentic Sulphide." 

 By Hammond V. Hayes. 



" Investigation of Temperature Errors caused by the Protec- 

 tion Tube in Cooling-Curve Measurements." By Harvey C. 

 Hayes. Presented by J. Trowbridge. 



" Determination of the Altitudes of Aeroplanes." By Robert 

 W. Willson. 



One thousand and fourth Meeting. 



March 8, 1911. — Stated Meeting. 



The President in the chair. 



There were thirty-seven Fellows present. 



The Corresponding Secretary read a letter from Mr. F. J. Stim- 

 son, resigning Fellowship ; also the preliminary announcement of 

 the Eighth International Congress of Applied Chemistry, to take 

 place in Washington and New York September 4-13, 1912. 



The Chair announced the death of Judge Francis C. Lowell, 

 Resident Fellow in Class III., Section 1. 



The report of the Committee on the amendments of the Stat- 

 utes was read and accepted, and the amendments were adopted, 

 as follows : 



The first three printed lines of Chapter I., Article 2 are amended so 

 as to read : 



"2. The number of Resident Fellows residing in the Commonwealth 

 of Massachusetts shall not exceed four hundred, of whom there shall 

 not be more than one hundred and fifty in any one of the three classes." 



The last five printed lines of Chapter II., Article 2 are amended so as 

 to read : 



*' It shall be the duty of this Council to exercise a discreet supervision 

 over all nominations and elections, and in general to supervise all the 

 affairs of the Academy, not exphcitly reserved to the Academy as a 

 whole, or intrusted to special Committees by these statutes. With the 

 consent of the Fellow interested, the Council shall have the power to 

 make transfers between the several sections of the same Class, reporting 

 their action to the Academy." 



The last paragraph of Chapter II., Article 3, and the whole of 

 Article 4, are amended so as to read : 



