■08 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



Microscope may be manipulated by an operator looking at the ground 

 glass of tbe fully extended camera. The coarse adjustment is to be 



Fig. 138. 



Fig. 139. 



preferred for all work with very low powers. If high powers are to 

 be used the focussing rod and Hooke's joint may be attached to the limb 



