1881. ] Microscopy. : 841 
that this action on the part of the Association will be gratifying 
to every student of histological and microscopical science in the 
country. It can hardly fail to furnish the most favorable and con- 
siderable advantage to all who care to enjoy the privileges of a 
national microscopical society. Professor A. H. Tuttle, of Col- 
umbus, was elected chairman, and Robert Brown, Jr., of Cincin- 
nati, secretary of the section for the Montreal meeting —A. B. H. 
New Freezinc Microrome—At the microscopical section A. 
A. A. S., Mr. Thomas Taylor, Microscopist of the Department of 
Agriculture at Washington, presented a model of a new freezing 
microtome of his invention. Mr. Taylor described his invention 
as consisting essentially of a thin brass tube about one inch anda 
half in length by one inch in diameter. A 4 inch brass tube is 
secured within the large cylinder. This tube enters the bottom 
Mounting Cuick Empryos wHote.—Dr. C. S. Minot recom- 
mended the following method, for embryos under 40 hours. The 
€gg is opened in the usual manner in warm 0.5 per cent. salt so- 
lution, the blastoderm freed from the yolk membrane, then swayed 
With pincers to and fro in the liquid to remove the superfluous 
yolk, and then floated out on a glass slide, on which it is to re- 
Main permanently. It is next treated with several fluids; a// of 
which should be dropped on the center of the germ disc so as to 
Spread out the blastoderm evenly by their centrifugal flow. Wash 
off thoroughly with distilled water. Remove the water as fully 
as possible by bibulous paper, and allow the specimen to remain 
fully spread out until the edges are dried. The embryo will then 
VOL, XV.—No, x, 
