26 THE A B C OF PHOTO MICROGRAPHY 



to a purpose will be found equally satisfac- 

 tory. I refer to the photographing under very 

 low amplifications (less than ten diameters) , of 

 macroscopic objects too large for the field of an 

 ordinary microscope objective, to which I 

 have ventured to give the name of photo-macro- 

 graphy, and to the pictures thus made, that of 

 photo-macrographs. Full details of the process 

 will be found in Chapter V on Negative Mak- 

 ing. Illustrations of this camera in connection 

 with my special microscope stand are given in 

 Figures 4, 5 and 6. 



In the preceding chapter I have endeav- 

 ored to give clearly and briefly as possible an 

 idea of the optical apparatus necessary for the 

 making of a photo-micrograph, which may be 

 said to begin and end with the microscope, 

 since each and every piece is but an accessory 

 of this central instrument. Not so, however, 

 do we find it in the photographic department 

 of our pursuit, for no matter how indispens- 

 able the camera may be, there are other 

 appliances equally so, but which have no con- 

 nection with it, as the optical accessories have 

 with the microscope. The first of these neces- 

 sities is a dark-room in which the sensitized 

 plates may be manipulated safely, from plac- 

 ing in the holders to the fully developed nega- 



