CH. II .] 



LABOR A TOR Y MICROSCOPES. 



67 



Fig. 71. Watson & Sons' Edinburgh Students" Microscope {Stand G). This is 

 a good representative of the tripod-base, English models of to-day. It is in gen- 

 eral like the Powell and Lealand stands which have held their position with the 

 foremost English microscopists for the last 40 years. {See Carpenter-Dallinger, 



A J 72). 



Microscopes with tripod bases something after this pattern are now being made 

 on the Continent. 



Attention is called to the sub- stage for the condenser. It possesses centering 

 screws so that any apparatus used in it may be accurately cetitered. It is to be 

 hoped that all microscopes of this grade will soon be supplied with a centering sub- 

 stage. 



