PHOTO-MICROGRAPHY 



INCLUDING 



A DESCRIPTION OF THE WET COLLODION 



AND 



GELATINO-BROMIDE PEOCESSES 



WITH 



THE BEST METHODS OF MOUNTING AND PREPARING MICROSCOPIC 

 OBJECTS FOR PHOTO-MICROGRAPHY 



BY 



A. C O WJTf R V_]V[ ALLEY, 



Ifca&F 



THE 



[UNIVERSITY, 

 isj^ 



SECOND EDITION, REVISED AND ENLARGED, WITH ILLUSTRATIONS. 



LONDON 



H. K. LEWIS, 136 GOWER STREET, W.C. 

 1885 



