THE MICROSCOPE AXD ITS ACCESSORIES. 



67 



The microscope figured No. 16 has mechanical movements to 

 the stage, with a very large rotating top plate, and a compound 

 substage, with rectangular screws for centring and rackwork to 

 focus. We consider this the most complete of their Edinburgh 



Fig. 17. 



series. The makers also claim as a speciality their Fine Adjust- 

 ment, which is of the lever form, it having compensating screws, 

 by means of which the user can adjust the instrument for any 

 slackness caused by wear and tear ; also the position of the milled 

 head permits of manipulation with either hand, and as it does not 



