810 PROCEEDINGS OF THE AMERICAN ACADEMY. 



diation of Electrons." By Robert W. Wood. Presented by 

 Charles R. Cross. 



" On a Postulate respecting a Certain Form of Deviation from 

 the Straight Line in a Plane." By Gustavus Hay. 



" Slow Moving Electrical Luminous Effects." By John 

 Trowbridge. 



" Effect of Magnetic Field on Electric Discharges." By John 

 Trowbridge. 



Nine hundred and sixtieth Meeting. 



November 8, 1905. 



The Academy met at the house of Dr. Alexander Agassiz, 

 Cambridge. 



The President in the chair. 



There were present eighty Fellows. 



The Corresponding Secretary read the following letters : — 



From the Sociedad Mexicana de Geografia y Estadistica, 

 Mexico, inviting the Academy to participate in its celebration 

 of the four hundredth anniversary of the birth of Christobal 

 Colon, May 20, 1906 ; from Charles Gross, Kuno Fran eke, 

 Herbert Langford Warren, and Albert Edwin Kennelly, accept- 

 ing Resident Fellowship; from Michael Idvorsky Pupin, ac- 

 cepting Associate Fellowship ; from Samuel Henry Butcher, 

 accepting Foreign Honorary Membership ; from William 

 Everett, resigning Resident Fellowship; from Baroness von 

 Richthofen, announcing the death of her husband ; from the 

 Gesellschaft fur Erdkunde, Berlin, announcing a memorial 

 service for Baron von Richthofen to take place October 29, 

 1905. 



The Chair announced the death of Freiherr von Richthofen, 

 Foreign Honorary Member in Class II., Section 1. 



The following communications were given: — 



" An Account of his Trip to the Eastern Pacific." By Pro- 

 fessor Agassiz. 



" The International Language, — Esperanto." By Professor 

 Wilhelm Ostwald. 



