186 General Notes. 
mented by an exhaustive analytical comparison of the facts observ- 
, with a view to their right classification and interpretation.” 
Papers on the topics were to be read by Hon. A. C. Butts and 
Hon. Geo. H. Yeaman, of the New York Bar; Judge Calvin G. 
Pratt, of Supreme Court, Brooklyn, N. Y.; Foster L. Backus, 
of Brooklyn; Pro ae J. Reese, of University of Pennsyl- 
Vian William’ J. Mann, Es sq.; E. P. Thwing, M.D.; Prof. 
Moritz Benedict, of Witenes and others. 
The Bar Association of the District of Columbia has proposed 
an international or interstate law congress, to be held in the city 
of Washington, on the 22d of May, 1888, to which shall be invited 
representatives of all other bar associations, judges of courts, pros- 
ecuting officers, and lawyers whose eminence in their profession en- 
title them to that recognition. Ido not know whether this will 
result in a permanent organization or not. But if so, I would sug- 
gest and strongly urge that it should have a section devoted to 
criminal anthropology ; and that anthropologic societies and con- 
gresses should do the same. By this means professional lawyers 
who are amateurs of anthropology, and professional anthropologists 
who may-be amateur lawyers, would have opportunities for the 
accomplishment of great good in their respective sciences. 
MICROSCOPY .! 
GERLACH’s EMBRYOSCOPE.—The embryoscope, devised by Dr. 
Gerlach, supplies a great and long-felt desideratum in experimental 
embryology. It is a mechanism for closing hermetically, a circular 
opening, made with a trepan, in the shell of the hen’s egg; and it 
serves the purpose of a window, through which the living ‘embryo 
np be directly observed, and its development followed from day 
to da 
The instrument consists of two parts : A mounting-ring 
(Aufsatzring) to be firmly cemented to the tel. 2. A key- 
piece with glass front, which screws into the ring and closes it 
air-tight. 
In the Cut. A represents the embryoscope in perspective, and B, 
in section. The metallic mounting-ring is 1} mm. thick, an 
a lumen 2 cm. in diameter. The lower edge (Ar) is bevelled and 
saddle-shaped so as to fit the equatorial surface of the egg, while the 
upper edge is flat. From the outer surface of the ring, two 
Savaro oaraid bars (Z) project in opposite directions. On its 
inner surface, a little above the lower edge, is a diaphragm (Md) 
* Edited by C. O. Whitman, Milwau 
2 Anatom. Anzeiger, II, Nos. 18 and Hs “i887, p. 583. 
