MICROSCOPE AND ACCESSORIES. 



[CII. I 



present a mirror, or both a mirror ami some form of condenser or illuminator for 

 lighting the object. The stand of the microscope consists of certain mechanical 

 arrangements for holding the optical parts ami for the more satisfactory use of 

 them. (See frontispiece"). 



Fig. 19. Lens Holder with adjustments for focusing and for turning- the lens in 

 any direction. This is especially useful in dissecting the minute farts of animals 

 too large for the regular dissecting- microscope [Fig. 20). (Bausch & Lomb Opt. Co.). 



