The Microscope. 



49 



have, designated The Graphological Microscope, a cut of which 

 is here given, and which is briefly described as follow : 



The pillar is a straight brass rod | inch in diameter, threaded 

 with a long screw into a plate flush with the surface of the 

 wooden base. The stage is of wood^or hard rubber, 5 by 8 inches, 

 and rests on a forked brass plate projecting from a stout collar 

 which slides on the pillar, and is clamped in place by a strong 

 thumb-screw with milled head. From the back of the collar op- 

 posite the stage a strong screw projects, upon which a handle 

 may be screwed when the instrument is to be passed about as 

 a class microscope. 



The arm is in two parts joined by a smoothly fitted joint 

 with a nut on the pivot ; the outer joint of the arm carries a slip- 

 tube through which the body tube is focussed by sliding, and 

 the inner joint of the arm is extended into a sleeve with a long 

 conical bearing around the top of the pillar, ensuring a smooth 

 motion. A flat, slotted plate is pivoted to the outer joint of the 

 arm and rests on top of the sleeve of the inner joint, the top of the 

 pillar passing through the slot being threaded and pivoted with 



