634 Proceedings of Scientific Societies. [June, 
ite, and on iodyrite, from the Sierra Grande mine, Lake valley, New Mexico, by F. 
A. Genth and Gerhard von Rath. 22. On the total solar eclipse of August 28th, 
1886, by A. N. Skinner (by invitation). 23. On the evolution and homologies of 
the flukes of Cetaceans and Sirenians, by Theodore Gill and John A. Ryder. 24. 
Biographical notice of Gen. A. A. Humphreys, U.S.A, by H. L. Abbot, 25. Chem- 
ical action in a magnetic field, by Ira Remsen. 26, On the measurement of hearing 
power, by A. Graham Bell. 27. On the possibility of obtaining echoes from ships 
and icebergs in a fog, by A. Graham Bell and Mr. F. Della Torre. 28. Biographical 
notice of William Stimpson, by Theodore Gill. 
The following gentlemen were elected members of the council: 
Professors Gibbs, Baird and Young, Gen. Meigs, and Messrs. 
Hilgard and Scudder. The following gentlemen were elected 
members: Henry Mitchell, Wm. A. Rogers, Edw. S. Holden, 
F. W. Putnam, Arnold Hague 
AMERICAN GEOGRAPHICAL Soctety, April 11.—Hon. John W. 
Hoyt delivered a lecture entitled Wyoming: its resources and 
wonders (illustrated by stereopticon views). 
BIOLOGICAL SOCIETY oF WASHINGTON, April 4.—The following 
communications were made: Professor C. A. White, On vegetable 
cells; Mr. Frank H. Knowlton, remarks on some Alaskan wil- 
lows and birches; Dr. Frank Baker, Muscular equalization. 
April 18.—Dr. 'D. E. Salmon and Dr. Theobold Smith, Koch’s 
method of isolating and cultivating Bacteria, as Pa in the labo- 
ratory of the Bureau of Animal Industry; Mr. A. B. Johnson, 
The shipworm and the sheeps-head ; Mr. G. Brown Goode, Re- 
marks on the velocity of animal motion ; Mr. Romyn Hitchcock, 
a of a sag gialy’ a of the “comma Bacillus” of cholera. 
— Thomas Taylor,, The — rust of cabbages, 
Deiis sitet (with illustrations) ; . H. W. Henshaw, 
hybrid quail; Mr. W. H. Dall, Notes ona cps in Florida. 
New York AcADEMY OF SCIENCES, April 6.—George F. Kunz 
made some general remarks on the mining and 7s of gems 
(illustrated with a series of lantern slides). 
April 13.— The language,of the ancient Egypti ans and its 
“nein records (illustrated with lanterns), by Dr. Charles E. 
o 
April 20.—Professor D. Cady Eaton lectured on the Canter- 
bury cathedral. 
oe 27.—Cotton in Brazil: its history, methods of cultiva- 
tion and the insects affecting it, by Mr. John C. Branner; Mr. G, 
F Mey eNotes a building notes on a remarkable meteorite. : 
y 4.—Notes on building stones: No. A 
ie eel g o. 2, Limestones, by Dr. | 
7 Boston Society or NATURAL History, April 1.—Professor G. 
F. Wright gave an account of his latest investigations upon the 
