BECK'S " IDEAL" STAND. 95 



vided with a ledge, v, and a light spring, w ; it is held 

 on the plate T by a spring underneath, so that it can 

 be moved about easily and smoothly by one or by both. 



FIG. 50. Beck's "Ideal" Microscope. 



hands. Messrs. Beck's latest improvement consists in 

 a glass friction stage, and this is adapted to all their 

 Students' microscopes. A polished glass plate is firmly 

 embedded in the brass stage-plate, and there held in 



