CHAPTER I 



THE ILLUSTRATIONS AND HIGH 

 POSSIBILITIES WITH THE MICROSCOPE 



The Illustrations. 



rnHE illustrations have been taken from 

 -*- photo-micrographs done on 12 by 10 

 plates directly through the microscope and 

 camera combined as one instrument. The 

 negatives have received no ' touching-up ' 

 whatever. 



They were exhibited at the Royal Society's 

 Annual Conversazione, May 13, 1904. In the 

 catalogue is the following summary of the 

 exhibit : 



' Examples of Photo-Micrography. The ex- 

 hibit includes sections of histological, botanical, 

 and entomological specimens, intended to assist 



