CHAPTER X. 



HOME-MADE GELATINE PLATES. 



ILL makers of commercial gelatine plates put for- 

 ward the quality of rapidity as being the one 

 thing needful in modern photography, and ad- 

 vertise their wares as being ten, twenty, or even sixty 

 times as quick in operation as the old wet collodion 

 process. Such rapid plates are not the best for trans- 

 parency work, and as no maker will acknowledge that 

 his plates are slow, although opinions may be divided 

 upon the matter, and as slow plates are the most 

 suitable for lantern slides, the operator who aims at the 

 best work may wish to try his hand at making them for 

 himself. Of the many formulae which I have tried for this 

 particular purpose, I prefer that first introduced by Dr. 

 Eder, which I have slightly modified. Gelatine plate 

 making is by no means easy work, but the method which 

 I am about to describe presents fewer difficulties than 

 most others. 



The apparatus required need only be of a very homely 



