628 PROCEEDINGS OF THE AMERICAN ACADEMY. 



The following gentlemen were elected members of the Acad- 

 emy : — 



Arthur James Balfour, of London, to be a Foreign Honorary 

 Member in Class III., Section 1 (Philosophy and Jurisprudence), 

 in place of the late Charles Russell, Baron Russell of Killowen. 



William Edward Hartpole Lecky, of London, to be a Foreign 

 Honorary Member in Class III., Section 3 (Political Economy 

 and History), in place of the late Samuel Rawson Gardiner. 



On the recommendation of the Rumford Committee, it was 



Voted, To award the Rumford Premium to George Ellery 

 Hale, of the Yerkes Observatory. 



James Barr Ames read a biographical notice of the late 

 James Bradley Thayer. 



A biographical notice of the late Alpheus Hyatt, by Alpheus 

 S. Packard, was read by the Corresponding Secretary. 



The following papers were presented by title : -*— 



" The Influence of Atmospheres of Nitrogen and Hydrogen on 

 the Arc Spectra of Iron, Zinc, Magnesium and Tin, compared 

 with the Influence of an Atmosphere of Ammonia." By Royal 

 A. Porter. Presented by Charles R. Cross. 



" On the Multiple Points of Twisted Curves." By John N. 

 Van der Vries. Presented by William E. Story. 



" Regular Singular Points of a System of Homogeneous Linear 

 Differential Equations of the First Order." By Otto Dunkel. 

 Presented by Maxime BOcher. 



Contributions from the Cryptogamic Laboratory of Harvard 

 University. — L. "Preliminary Diagnoses of New Species of 

 Laboulbeniaceae." — V. By Roland Thaxter. 



Contributions from the Cryptogamic Laboratory of Harvard 

 University. — LI. "On Cauloglossum transversarium (Bosc) 

 Fries." By J. R. Johnston. Presented by Roland Thaxter. 



" On the Ionization of Soils." Bv Anion Benton Plowman. 



J 



Presented by George Lincoln Good ale. 



Contributions from the Gray Herbarium of Harvard Uni- 

 versity. New Series. — XXV. I. " Flora of Cocos Island of the 

 Pacific. " II. " Diagnoses and Synonymy of some Mexican 

 Spermatophytes." By B. L. Robinson. 



