156 



ELEMENTARY CHEMICAL MICROSCOPY 



material tenaciously since they lock firmly in place, and thus 

 the fingers do not become cramped during prolonged heat 

 treatments. 



Work Tables. The type of work table chosen by the chemist 

 upon which to place his instruments and apparatus for micro- 

 chemical investigations will depend largely upon his individual 

 preferences or upon the character of the work he is called upon 

 to perform. 



