1896.J 



MICROSCOPICAL JOURNAL. 



195 



for practical work. Practical work requires a steady, 

 always available light, and these requirements can only 

 he met by some form of artificial light. 



Fig. 2. — Apparatus arranged for photomicrography with acetylene light. 

 To show the acetylene burner it is placed outside the lantern. The 

 camera is racked up so that the operator may arrange the object and 

 substage. 



By courtesy of Meilical Record. 



Artificial light being necessary, the question of kind 

 arises. So far as results are concerned almost any form 

 may be used, provided it is properly used. Most of the 



