en. r///] 



PHOTO-MICROGRAPHY 



227 



FIG. 176. Zeiss' special photo-micrographic stand. This is the parent 

 form of pholomicrographic stands zvith large tube (T), handle in the 

 pillar and a special fine adjustment at the side (W). At the top is half of the 

 light excluding sleeve. (Zeiss' Catalog). 



