18 ELEMENTS OF APPLIED MICROSCOPY. 
ae , 
Fic. 15.—THE MIcROSCcOPE. 
A. pa £ Coarse adjustment. 
Cc. Arm. L. Fine adjustment. 
D. Tube. M. Stage. 
E. Collar. N. Spring clips. 
F. Objectives. Q. Mirror. 
G. Ocular. P. Mirror bar. 
H. Draw-tube scale. Q. Substage. 
I. Draw-tube. S. Diaphragm. 
