24 



HISTOLOGY OF MEDICINAL PLANTS 



MICROPHOTOGRAPHIC APPARATUS 



The microphotographic apparatus (Fig. 29), as the name 

 implies, is an apparatus constructed in such a manner that it 

 may be attached to a microscope when we desire to photograph 

 microscopic objects. It consists of a metal base and a polished 

 metal pillar for holding the bellows, slide holder, ground-glass 

 observation plate, and eye-piece. In making photographs, the 

 small end of the bellows is attached to the ocular of the micro- 



FiG. 29. — Microphotographic Apparatus 



scope, the locus adjusted, and the object or objects photo- 

 graphed. More uniform results are obtained in making such 

 photographs if an artificial light of an unvarying candle-power 

 is used. 



There are obtainable more elaborate microphotographic 

 apparatus than the one figured and described, but for most 

 workers this one will prove highly satisfactory. It is possible, 

 by inclining the tube of the microscope, to make good micro- 

 photographs with an ordinary plate camera. This is accom- 

 plished by removing the lens of the camera and attaching the 

 bellows to the ocular, focusing, and photographing. 



