1896.] 



MICHOSCOPICAL JOURNAL. 



199 



The ai)paratus 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 w^hicli is placed 

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

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

 be in the laboratory or in a convenient adjoining room. 

 This furthers its practical use, for when in working 

 a field is found a photograph which is desired, the 





.♦ 



^^' ;-^^*i 



»4*» • / ' 



n." 



f.,'. 





Fig. 4. — Colony of stapliylococcas 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 courtesy of Medical Eecord. 



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 



