RECORDS OF MEETINGS. 489 



Richard Cockburn ]Maclaurin, Class I., Section 2 (Physics); 

 Elmer Ernest Southard, Class II., Section 4 (INIedicine and 

 Surgery). 



The President announced the appointment of Professor C. B. 

 Gulick for two years and Professor F. N. Robinson for four years 

 to represent the Academy as members of the American Council 

 of Learned Societies Devoted to Humanistic Studies. 



The following Communications were presented and discussed : 



Professor George H. Parker. "The Growth and Significance 

 of the Nervous System." 



Professor Charles R. Lanman. "The Arrangement of the 

 Ancient Hindu Alphabet, and its Scientific Basis in Phonetics and 

 Anatomy." 



The following papers were presented by title: — 



"A INIonograph of the American Frogs of the Genus Rana." 

 By G. A. Boulenger. Presented by J. B. Woodworth. 



"Some Geometric Investigations on the General Problems of 

 Dynamics." By Joseph Lipka. 



" Contribution to the General Kinetics of Material Transforma- 

 tions." By A. J. Lotke. Presented by Irving Fisher. 



"Rotations in Space of Even Dimensions." By H. B. Phillips 

 and C. L. E. Moore. 



"Orbits Resulting from Assumed Laws of Motion." By A. 

 Searle. 



The JNIeeting was then dissolved. 



One thousand and nintieth Meeting. 



March 10, 1920. — Stated Meeting. 



The Academy met at its House at 8.15 p. m. 

 The President in the Chair. 

 Thirty-five Fellows and three guests were present. 

 The Transactions of the last ^Meeting were read and approved. 

 The President appointed the following Councillors as Nominat- 

 ing Committee: 



G. P. Baxter, of Class I. 

 W. M. Wheeler, of Class II. 



