208 



PHO TO-MICROGRAPHY 



[CH. VIII 



t FIG. 165. Vertical Camera and special microscope stand for photograph- 

 ing embryos and other small specimens in liquids and for photographing 

 large sections. The camera rests on a low table and the operator can stand on 

 the floor while performing all the manipulations. 



The stage of the microscope is attached to the arm in the place of the tube. 

 This stage has tzvo stories. The specimen is shown on the upper and the back- 

 ground on the lower story. In focusing, the coarse and fine adjustment of the 

 special microscope stand are used. The extention of the camera for a definite 

 size of picture is discussed in \ 273. 



