246 



CLASS DEMONSTRATIONS 



\_CH. IX 



§ 395. Traveling Microscope. — For many years the French 

 opticians have produced most excellent traveling microscopes. The 

 opticians of other countries have also brought out serviceable instru- 

 ments. In the one here figured Mr. Leitz has combined in an admirable 

 way a traveling microscope and a laboratory instrument. For the 

 needs of the pathologist and sanitary inspector a microscope must pos- 

 sess compactness and also the qualities which render it usable for nearly 

 all the purposes required in a laboratory. This instrument is a type 

 of such apparatus which has grown up with the needs of advancing 

 knowledge. 



Fig. 198. 



Fig. 198. Tiaveling microscope folded up and in its case {Leitz ; from Wm. 

 Kraffl, N. Y.). 



