510 Proceedings of Sctentifie Societies. [June, 
the white blood corpuscles of a frog colored with cyanine show 
amceboid movements. The cyanine should here be dissolved in 
serum. Chinoline blue is, par excellence, the reagent of fatty mat- 
ter. By affecting the cellular and not the nuclear protoplasm in 
infusoria, it shows fatty matters to exist only in the former. It 
should prove a useful means of studying cellular life. 
— The annual meeting of the Society for the Promotion of 
Agricultural Science will be at Cincinnati, on Tuesday, August 
16, 1881, the day preceding the sessions of the American Asso- 
ciation for the Advancement of Science. ; 
The following gentlemen have indicated to the secretary their 
readiness to present essays at the coming meeting: Professor 3 
W. Johnson, Patrick Barry, Professor W. J. Beal—subject, Testing 
seeds, Professor J. Henry Comstock, Professor E. W. Hilgard, Pro- 
teachers. Professor E. S, Morse, the director, will be aided by 
Dr. J. W. Fewkes, Dr. C. S. Minot and Professor Straight, and 
Messrs. Fish and Sears. 
——:0:——— 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
Nationa Acapemy oF Sciences.—The annual meeting bega" 
in Washington, April 19, the president of the Academy, P rofes- 
sor W. B. Rogers, of Boston, in the chair. The list of papers 
read is as follows: 
Tuesday, April 19.— The domain of physiology,” by T. mar 
unt; “The compass plant of the western prairie,” by B- of 
vord; “The solar constant,” by S. P. Langley; “ The color 0 
the sun,” by S. P. Langley ; “On mountain observations” by 5. ¥- 
Langley ; “ On the relations of soils to health,” by R. P umpelly ; 
“ Reduction to sea level of barometric observations made at ele- 
vated stations,” by Elias Loomis 
to our knowledge of the currents and temperature of the © 
in the vicinity of Behring’s strait,’ by W. H: Dall; as method 
