14 



PRACTICAL HISTOLOGY. 



Diagram of microscope. 



/, tube seen in section ; t', sliding part of tube ; oc, ocular, with <?, eye glass, and 

 /. field-glass ; obf, objective ; adj, coarse, and i.d/', fine adjustment; ,fi, sta^e; 

 with d, diaphragm; ni, mirror; ft, foot of microscope. 



The object i* indicated l.y a small arrow j nst above the aperture in the diaphragm ; 

 the magnified image by the larger arrow in the middle of the ocular. 



