1895,] Proceedings of Scientific Societies. 513 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
The U. S. National Academy of Sciences met in Washing- 
ton, D. C., Tuesday, April 16th, 1895, and continued in session until 
Friday the 20th, inclusive. The following papers were read: “On 
Some Variations in the Genus Eucope,” A. Agassiz and W. McM. 
Woodworth ; “ Notes on the Florida Reef,” A. Agassiz; “ The Progress 
of the Publications on the Expedition of 1891 of the U. S. Fish Com- 
mission Steamer ‘Albatross,’ Lieut.. Commander Z. L. Tanner, command- 
ing? A. Agassiz ; “On Soil Bacteria,” M. P. Ravenel (introduced by 
J. S. Billings); “A Linkage Showing the Laws of the Refraction of 
Light,” A. M. Mayer; “ On the Color Relations of Atoms, Ions and 
Molecules,” M. Carey Lea; “ Mechanical Interpretation of the Vari- 
ations of Latitude,” R. S. Woodward (introduced by S. C. Chandler) ; 
“ On a New Determination of the Nutation-Constant, and Some Allied 
Topics,” S. C. Chandler; “On the Secular Motion of a Free Magnetic 
Needle,” L. A. Bauer (introduced by C. Abbe); ‘‘ On the Composition 
of Expired Air, and Its Effect Upon Animal Life,” J. S. Billings ; 
“Systematic Catalogue of European Fishes,” Th. Gill; The Extinct 
Cetacea of North America,” E. D. Cope; On the Application of a Per- 
centage Method in the Study of the Distribution of Oceanic Fishes: ” 
(A) “ Definition of Eleven Faunas and Two Sub-faunas of Deep Sea 
Fishes,” (B) “ The Relationships and Origin of the Carribeo-Mexican 
and Mediterranean Sub-faunas,” G. Brown Goode; “On the Two 
Isomeric Chlorides of Ortho-sulpho-benzoic Acid,” Ira Remsen; “ On 
Some Compounds Containing Two Halogen Atoms in Combination with 
Nitrogen,” Ira Remsen ; “ Presentation of the Watson Medal to Mr. 
Seth C. Chandler, for his Researches on the Variation of Latitudes, on 
Variable Stars, and for his other works in Astronomy” ; “ Biographi- 
cal Memoir of Dr. Lewis M. Rutherford,” B. A. Gould; “ Relation of 
Jupiter’s Orbit to the Mean Plane of Four Hundred and One Minor 
Planet Orbits,” H. A. Newton; “ Orbit of Miss Mitchell’s Comet, 1847, 
VI,” H. A. Newton. ; 
The following officers were elected : President, Walcott Gibbs; Home 
Secretary, Asaph Hall; Foreign Secretary, Alexander Agassiz ; Coun- 
cil, G. J. Brush, G. L. Goodale, S. Newcomb, B. A. Gould, Ira Rem- 
sen, O. C. Marsh. 
The following were elected members: C. O. Whitman, Chicago; W. 
L. Elkin, New Haven ; C. S. Sargent, Jamaica Plain, Mass.; W. E. 
Welch, Baltimore, Md. 
