1896.] 



MICROSCOPICAL JOURNAL. 



199 



The apparatus consists of a camera hung in a vertical 

 position, of a microscope with substage attachments, ob- 

 jectives and eyepieces, and a stereopticon, such as is used 

 with oil light for projection purposes, in which is placed 

 an oil lamp, or gas or acetylene burner. This apparatus 

 is secured on a low strongly built table, and should eitlier 

 be in the laboratory or in a convenient adjoining room. 

 This furthers its practical use, for when in working 

 a Held is found a photograph which is desired, the 



Fig. 4. — Colony of staphylococcus pyogenes aureus floating on liquefied gela- 

 tin. X 30 diameters. Exposed twenty seconds to oil light, using Beck 

 one-inch objective; no eyepiece or substage condenser. 



By eourtes}' of Medical Record. 



microscope has only to be carried to the apparatus, placed 

 in position, the light lighted, adjustments made, and the 

 camera racked into position. With a conveniently placed 

 dark room, the whole photographic operation will take 

 but a few minutes. The working microscope should al- 

 ways be used for photography. By using the same 

 microscope for both purposes the trouble and loss of time 



