1372 



Journal of Applied Microscopy 



ing rod of the camera 

 from the microscope. 

 To avoid the displac- 

 ing and replacing of 

 the belt connecting 

 the mechanism, the 

 following arrange- 

 ment is adopted : 



On the table of 

 the optical bench, 

 directly beneath the 

 fine adjustment head 

 of the microscope, is 

 situated a milled 

 wheel on suitable 

 standard. A belt 

 extends from this 

 wheel to the fine 

 adjustment head of 

 the microscope. 

 Through the axis of 

 the wheel is located 

 a rod carrying at 

 the end toward the 



Fig. 6. — Anthrax, impression preparation from edge of colony on 

 gelatin. xyoo. Lens, j'^ oil immersion ; ocular i in. compensa- 

 tion ; substage condenser, oil immersion N. A. 1.40. 



camera a clutch which can be quickly connected with the 



focusing rod of the 

 camera by sliding 

 adjustment, oper- 

 ated by a milled 

 head. The optical 

 bench must of 

 course be brought 

 to its proper posi- 

 tion with relation 

 to the camera in 

 order to make this 

 connection, and, 

 that this position 

 may be quickly and 

 accurately located, 

 an automatic catch 

 is provided, which 

 catch can be re- 

 leased by a lever, 

 shown in the illus- 

 tration. 



Malarial Parasite in Human Blood. Cresentic form. X1200. 



B. H. Buxton. 



Cornell Medical Col- 

 lege. 



