414 PROCEEDINGS OF THE AMERICAN ACADEMY 



" Theory of the Constitution of the Sun, founded upon 

 Spectroscopic Observations, original and other." By Charles 

 S. Hastings. 



Mr. S. H. Scudder exhibited a remarkable fossil insect. 

 Remarks upon this subject were made by Professor Morse. 



Seven hundred and thirty-fifth Meeting:. 



November 10, 1880. — Monthly Meeting. 



The President in the chair. 



The President, in the absence of the Corresponding Secre- 

 tary, read letters from *Mr. Henry W. Haynes, accepting fel- 

 lowship in the Academy, and the Honorable Charles Francis 

 Adams, relative to the address which he prepared for the 

 recent centennial of the Academy. 



The following papers were presented : — 



" On the Nomenclature of various Manifestations of En- 

 ergy." By A. E. Dolbear. 



" On an Acoustic Plienomenon noticed in a Crooke's 

 Tube." By Charles R. Cross. 



Professor Dolbear spoke of a possible means of protection 

 from lightning. 



Seven hundred and thlrtj-sixth Meeting. 



December 8, 1880. — Monthly Meeting. 



The President in the chair. 



The Corresponding Secretary read letters from Messrs. 

 Auwers and Des Cloizeaux, acknowledging election as For- 

 eign Honorary Members ; M. Daguin, presenting a copy of 

 the fourth edition of his TraitS de Physique ; and C. N. Ra- 

 cotta. President, announcing the formation of the " Soci(;td 

 d' Agriculture Roumaine," at Bucharest, and proposing an 

 exchange of publications with the Academy. 



