THE MICROSCOPE IN SECTION. 



t. Compensation ocular 12; it is a positive 

 ocular. 



2. Draw-tube, by which the tube is lengthened 



or shortened, 



3. Main tube or body, Lo the lower end of which 



the objective or revolving nose-piece is 

 attached 



4. Society screw in the lower end ol the 



draw-tube. 

 S- Society screw in the lower end oi the 



tube. 

 6. objective in position. 

 -. Stage, under which is the substage with the 



substagt condenser. 

 8. Spring clip for holding the specimen, 



■ 1 Screw for centering, and bun 

 iris diaphragm in the achn 

 denser 1 sec Fig. 41). 



to. Iris diaphragm outside the priii 

 of the condenser for use in 



11. Mirror with plane and concave 1 



1 2 Horse-shoe base. 



[3 Rack and pinion for the substa 



1.]. Flexible pillar. 



is Part of pillar with spiral spri 



adjustment 

 hi Screw of i\n^ adjustment. 

 1- Milled head of coarse adjustme: 



If ( 



1 the 



nat 





ipal 



focus 



cell 



terine 



