944 Tue MIcROScOPE. 
of Cincinnati, assisted by Prof. Walmsley, of Philadelphia. The 
whole process was described by Gov. Cox in his exceedingly in- 
teresting way of doing such things while Prof. Walmsley took sev- 
eral photographs at the same time. Some of the good results of 
the evening’s instruction are already apparent, for several who were 
present have since then become enthusiastic workers with the 
camera, and they in turn will awaken an interest in others. It was 
very unfortunate that no reporter was present, but Gov. Cox was so 
earnestly solicited for some notes, in regard to the evening’s work, 
to be published in the Proceedings that he can hardly refuse to 
write them. HE. HY Ge 
NEW INVENTIONS. 
THE BAUSCH AND LOMB MECHANICAL STAGES. 
The instruments figured. in (A.) and (B.) are designed to fur- 
nish all the movements desirable in this kind of stage. 
(A.) is the larger of the two, having a diameter of one and a half 
inches. It is intended to be used with the “‘Concentric” and “ Pro- 
fessional” mi- 
croscopes man_ 
ufactured by 
this firm. The 
upper part of 
the stage is of 
polished black 
glass ; the slide- 
carrier is pro- 
vided with clips 
and stops for the Maltwood finder; the movements are contained 
within the circumference of the stage, so that it can make a complete 
rotation ; the rectangular 
movements are delicate 
and actuated by two 
milled heads, placed one 
above the other ; and the 
edge of the stage is 
milled, graduated to de- 
grees and silvered. 
(B.) is the latest con- 
