MICROSCOPES. 

 Fig. 754. 



235 



j 



Description of the Plate. A, the microscope, as it lies in 

 its case, the body and pillars taken out, to show the appa- 

 ratus beneath. B, the compound body. C, the pillar on 

 which is fixed the stage, fig. 2, and reflecting mirror, fig. 3. 

 These remain on the pillar when put into the case, for the 

 convenience of packing. D, the arm, may be taken off and 

 used as a hand microscope, fig. N. E, the different powers, 

 Nos. 1, 2, 3. These are screwed on to the arm, and in them 

 the body, but each may be used singly for large or opaque 



