CHAPTER XII. 



OX COLOURING PHOTOGRAPHIC TRANSPARENCIES FOR LANTERN 



SLIDES (continued}. 



GREAT many subjects can be advantageously 

 treated as moonlight pictures, and very attractive 

 they are if well done. In this case, the blue 

 must be laid on of a much darker hue, and can have 

 blended with it a little ivory-black. Having decided 

 upon the best position for the " queen of night," that 

 place should be lightened by extra hard dabbing, and 

 any clouds that may be required can be wiped out at 

 the same time, taking care that their light edges are 

 nearest to the uncreated moon. The moon must not 

 be wiped out, but must be picked out, film and all, so 

 that nothing but bare glass is on the spot covered by it. 

 To accomplish this, wait until the paint is bone dry, and 

 attach to the place where the moon is to be a tiny piece of 

 gummed postage-stamp paper. This should not be bigger 

 than a small pea, and is merely for the temporary purpose 

 of holding the leg of a small pair of compasses. I keep a 

 special pair for this particular work, one leg being ground 



