PROCEEDINGS OF SOCIETIES, 
267 
regular meeting since the summer vacation, a good deal of routine 
business was transacted in tlie business session. 
At the scientific session, Lieutenant W. L, Carpenter, U.S.A., 
late of the Hayden and Wheeler Surveys of the Territories, gave a 
brief but interesting lecture “ On the use of Curare in the study of 
Biology.” His remarks were illustrated by the injection of a few 
drops of the dilute solution of this poison beneath the skin of a male 
frog, producing complete paralysis of the voluntary muscles. By a 
careful dissection, the intestine was drawn out, and the circulation of 
the blood in the small vessels of the mesentery was well shown on tho 
President’s large Tolies’ stand, with his Tolies’ 1-inch objective, and 
the B (1-inch) Huyghenian, and the. 1,-inch and j-mch solid eye-pieces, 
the powers being respectively 100, 200, and 400 diameters. Under 
the latter power the individual corpuscles were beautifully defined. 
Lieutenant Carpenter exhibited one of Zentmayer’s new Histo- 
logical Microscope stands. This is a most compact, convenient, and 
beautifully finished little stand, having several new points of excel- 
lence. The mirror bar is pivoted in plane of the object, and carries a 
sub-stage or accessory carrier, the distance of which from the object 
can be varied to focus a condenser. The mirror and sub stage can 
be swung above the stage, and used for the illumination of opaque 
objects. 
The President exhibited a Tolies’ large microscope stand, “ B,” 
with 1-inch Huyghenian, and l anc l -L-inch solid eye-pieces, and Wen- 
ham reflex illuminator. The firmness, solidity, convenience, and per- 
fect workmanship of this splendid stand were much admired. The 
President also exhibited a cheap -gtli dry objective, by Tolies, price 
SI 5, which resolves clearly P. angulatum by central light. 
The additions to the library and cabinet were, ‘ Science Observer ’ 
for August and September; ten pamphlets relative to the display 
made by the U.S.A. Medical Department at the Centennial Exhibi- 
tion ; ‘ Journal de Micrographie,’ Paris, France ; Report on the 
Rocky Mountain Locust and other Insects injurious to Vegetation, by 
Dr. Packard; the ‘Cincinnati Medical News’ for July, August, and 
September ; a series of drawings of typical forms of diatoms, from 
Rev. J. W. Armstrong, D.D. ; foraminiferous earth, from Rev. M. 
Adams ; a number of specimens of the imago and the empty larva 
cases of the so-called seventeen-year locust (Cicada Septemdecevi), 
from Mr. and Mrs. H. L. Hinman. 
After a time spent in the examination of objects, and discussion of 
Lieutenant Carpenter’s remarks, the Society adjourned. 
Tyndall Association of Science. 
At a stated meeting of the section of Microscopy of this Associa- 
tion, held at Columbus, Ohio, October 13, 1877, Professor T. C. 
Mendenhall in the chair, papers were read by Rev. I. F. Stidham on 
the “ Oscillaria ; ” by Mr. C. C. Howard on “ Blood,” and exhibiting 
