384 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



S p, Illuminating mirror for incident light ; S t', S t", milled heads for 

 centering light source. 



Fig. 92 shows the setting up of the apparatus for micro-projection 

 with Microscope stand. 



Fig. 93 shows the change-over from micro-projection to macro-projec- 



Fio. 91. 



tion. The Microscope stand is pushed aside ; the macro-objective is 

 inserted into the projection-system bearer P ; in the lantern-slide carrier 

 P a suitable adaptation is made by sliding out the object-glass carrier. 

 Fig. 94 shows the arrangement for the micro-projection of fluid and 



