O THE A B C OF PHOTO - MICROGRAPHY 



high schools of New York city they are used 

 to the extent of several thousand prints; 

 mostly thus far in illustrating animal his- 

 tology. Professor Peabody employs them in 

 his classes for comparison by the students 

 with the same subjects under the microscope, 

 finding them to be of the greatest service. He 

 has lately published an interesting sketch of 

 this work. As lantern slides for use on the 

 screen before large classes, their importance 

 has long since been fully established. It is 

 useless for me to urge a point already con- 

 ceded by many who wholly ignored it less 

 than a decade ago, and it therefore only re- 

 mains to say a few words as to the scope of 

 this little book and the reasons for its being. 



The latter are my firm conviction that every 

 student should, in these days of universal ama- 

 teur photography, be able to do good photo- 

 micrography as well as to push the button of 

 a kodak, and the knowledge that no work on 

 the subject which would teach him the ABC 

 of it is at present in existence. Whether I 

 have succeeded in writing such, time must 

 make manifest. The work is wholly original; 

 there are neither paste nor scissors in its com- 

 position. Having carved what little I know 

 of the subject out of actual experience, I have 



