68 



LABOR A TOR Y MICROSCOPES. 



{CH. II. 



Fig. 72. Natchet & Fits' Medium Microscope No. 4 with Movable Stage. The 

 French microscopes set the fashion for the Continent of Europe, and the Con a 

 nental cr Hartnack Model with the horse shoe base has extended to all lands, but 

 see Carpenter- Dallinger, p. 208. 



