THE BOOK OF THE LANTERN. 169 



not be obtained by piling on masses of pigment, which will 

 naturally serve to obscure the details of the photograph 

 upon which such pigment is placed ; but this force of 

 colour can be easily produced by judicious contrast of differ- 

 ent tints. As I have before observed, the student must 

 make himself master of the art of colouring, if possible, 

 before he commences its practice. Some years ago there 

 was published an excellent series of little books, costing 

 only a few pence each, giving chromo-lithographic examples 

 of various simple studies in water-colour painting by 

 Callow and other artists, under the title of " Vere Foster's 

 Drawing Books." These books, I believe, are still to be 

 had, at least, I hope so, for they are full of merit, and 

 give more valuable instruction than many works of far 

 more pretension. They give specimens of water-colour 

 sketches, unfinished and finished, side by side. Perhaps 

 the former are the more valuable for our present purposes, 

 for they exhibit merely broad masses of colour, and show 

 how one tint can be made to contrast with another. It 

 will be seen in some of these pictures that a blue sky is 

 contrasted with orange yellows in the landscape beneath 

 and how, on the other hand, a yellow sky can be rendered 

 at once effective by purple hills upon which it seems to 

 rest. 



When the picture is entirely finished, it may be once 

 more submitted to the baking operation, taking care that 

 the heat never rises to blistering point, or all the labour 

 spent on the slide will be thrown away. The picture may 

 now again be placed on the easel, and if the artist has 

 sufficient reliance upon his power of knowing when to stop 



