RECORDS OF MEETINGS. 487 



It was, Voted, That the Academy defray the expenses of the 

 two delegates to this first meeting. 



The following Communication was presented : 



Professor William E. Ritter. "The Common Ground of Three 

 Domains of Knowledge, frequently called the Exact, the Descrip- 

 tive, and the Humanistic Sciences." 



Dr. Francis H. Williams presented a brief paper on a possible 

 cause of the Aurora through the action of the wind in a magnetic 

 field. 



In the course of the discussion which followed Professor Elihu 

 Thomson presented two letters describing a well-observed case 

 of globular lightning, and Professor Ephraim Emerton described 

 two cases actually seen by him. 



The following paper was presented by title: — 



"The Specific Heat of Ammonia."' By H. A. Babcock. Pre- 

 sented by Henry Crew. 



The ]Meeting was then dissolved. 



One thousand and eighty-seventh Meeting. 



January 14, 1920. — Stated Meeting. 



t 



The Academy met in its House at 8.15 p. M. 



Vice-President Thomson in the Chair. 



Forty-one Fellows and one guest were present. 



The Transactions of the last Meeting were read and approved. 



The Corresponding Secretary presented a biographical notice 

 of Frederick Remsen Hutton by L. S. Marks. 



The Chair announced the death of the following Fellows: 

 Louis Valentine Pirsson, Class II., Section 1; Sir William Osier, 

 Bart., Class II., Section 4; Franklin Carter, Class III., Section 2. 



The following Communication was presented: 



Dr. Louis A. Bauer. " Observations of the Total Solar Eclipse, 

 May 29, 1919, at Cape Palmas, Liberia, and at other Stations." 



A discussion followed. 



The Meeting was then dissolved. 



