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SUMMARY OF CURRENT RESEARCHES RELATING TO 



It has diagonal rack-and-pinion coarse movement, micrometer screw 

 fine adjustment and draw tube, as in the original instrument, but a 

 larger stage, ?>£ in. by 2| in., which folds to facilitate packing, and is 

 held in position by a strong clamp screw, a substage fitting of 1^ in. 

 diameter carrying a full size Abbe condenser and iris diaphragm, and 

 larger plane and concave mirrors, viz. 1^ in. diameter, have been added. 



Fig. 58. 



A removable mechanical stage with 1 in. movement in both direc- 

 tions has also been fitted, as this greatly facilitates the examination of 

 blood spreads, etc. 



It is mounted on a folding tripod foot, and is supplied in a solid 

 leather case. The size of case is 10^ in. by 5i in. by 3 in., and it will 

 carry the following apparatus : — Microscope stand, two eye-pieces, three 



