42 THE ELEMENTS OF VEGETABLE HISTOLOGY 



Fig. 22. — Parts of the Compound Microscope. 



(Bausch & Lomb.) 

 E, Eyepiece; D, Draw Tube; T, Body Tube; RN, Revolving Nosepiece; O 

 Objective; PH, Pinion Head; MH, Micrometer Head; HA, Handle Arm; s\ 

 Stage; 'SS, Substage; M, Mirror; B, Base; R, Rack; P, Pillar; /, Inclination Joint. 



