148 THE BOOK OF THE LANTERN. 



in a frame. A small school slate measuring about 8 by 5, 

 with the slate knocked out, and a piece of window-glass put in 



Fig. 44. 



its place, makes a very good easel for slide-painting. This 

 should be hinged on to a base board with a strut at one 

 side, so as to keep it at a convenient slope for working. A 

 sheet of white paper placed on the base board at the back 

 completes the arrangement. 



Beyond the easel we shall require a palette, and a white 

 tile answers the purpose as well as anything else ; some 

 brushes, a few colours, a sheet or two of white tissue paper, 

 and a piece of linen cloth upon which to wipe the brushes. 

 One or two bottles containing different media will complete 

 the list. The colours employed are those used by artists 

 for oil painting, and which are enclosed in collapsible metal 

 tubes. But, unlike the oil painter, the lantern-slide artist 

 Is confined to the use of those colours only which are 

 naturally transparent. To make this clear, let us suppose 



