42 THE ELEMENTS OF VEGETABLE HISTOLOGY 



8 



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; Mil, Micrometer Head; HA, Handle Arm; S, 

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



