RECORDS OF MEETINGS. 755 



The following Communications were presented: 



Professor G. F. Moore, "The Properties of Numbers and the 

 Doctrine of Ideas." 



Professor H. W. Shinier, "The Post-Glacial History of Boston." 



Professor A. E. Kennelly, "The Speeds, Powers, and Fatigue of 

 Racing Animals," illustrated by lantern. 



The following papers were presented by title: 



"On Dyadics Occurring in Point Space of Three Dimensions," 

 by C. L. E. Moore and H. B. Phillips. 



"A Table of the Legendre Functions of the Second Kind Qi(x) 

 and Q'i(x) by ^Yillard J. Fisher, presented by A. G. Webster. 



The meeting then adjourned. 



One thousand and sixty-ninth Meeting. 



January 9, 1918. — Stated Meetixg. 



The Academy met at its House. 



The President in the Chair. 



There were forty-seven Fellows present. 



In the absence of the Recording Secretary, the Corresponding 

 Secretary was appointed Recording Secretary jpro tern. 



A biographical notice of De Amicis by W. R. Thayer was pre- 

 sented by the Corresponding Secretary. 



Suggestions from E. B. Wilson regarding amendments of the 

 Statutes were referred to a committee consisting of E. B. Wilson, 

 H. W. Tyler and E. V. Huntington. 



The following gentlemen were elected Fellows of the Academy: 



Grinnell Jones, of Cambridge, to be a Fellow in Class I., Section 

 3 (Chemistry) . 



Ir\nng Langmuir, of Schenectady,' to be a Fellow in Class I., 

 Section 3 (Chemistry). 



William Ebenezer Ford, of New Haven, to be a Fellow in Class 

 II., Section 1 (Geology, Mineralogy and Physics of the Globe). 



William Crawford Gorgas, of Washington, to be a Fellow in 

 Class II., Section 4 (Medicine and Surgery). 



Robert Battey Greenough, of Boston, to be a FelloAv in Class II., 

 Section 4 (Medicine and Surgery). 



