THE NATURE AND NEEDS OF LIVING MATTER 33 



M 



FIG. 7. Compound microscope. B, pillar; D, tube or body; F, objective; 

 G, eyepiece; H, draw tube; J, coarse adjustment; K, milled wheel; L, 

 fine adjustment ; M, stage ; O, mirror ; S, diaphragm. 



SHARPE 8 LAB. MAN. 



