(172 



SUMMARY OP CURRENT RESEARCHES RELATING TO 



Bausch and Lomb Optical Co.'s Physician's Microscope. — Tho 

 special features of this instrument (fig. 114) arc the fino adjustment 

 (described in Vol. II., 1882, p. 683), tho cradle-joint for inclining, and 

 the glass stage. The hitter rests on a forked support and could bo 

 made to givoin a different form one advantage of Mr. Nelson's divided 



PlQ. 111. 



stage, as with glass the position of the illuminating apparatus would 

 be readily seen. The slide-carrier would, however, require to be 

 altered, so as not to impede the view beneath the stage. There is 

 a removable substage and diaphragm. 



The pillar and arm, in the original form, were marked so as to 

 indicate the correct inclination of the body in the use of the camera 

 lucida. The mirror is attached to a swinging tail-piece. 



