Druggists' and dispensers' practial show card instructor .. (1914)
[Thompson, William Alexander], 1862- [from old catalog] · [Pontiac, Mich., W. A. Thompson · leaf 127
om. The depthof color of background can be made a light or heavytint at the will of the operator. When a fine spray is desired without spreading, addabout a teasponoful of mucilage* in bottle of atomizer withcolor. When mucilage is added the solution will give good orbetter results after being made… … In putting tinted backgrounds on colored cardboard,remember that the ink powder solution is transparent,consequently. Red sprayed on Blue cardboard will have apronounced purple shade, while Blue on Yellow card-board will show up Green, and so on, the undergroundcolor always prominent in modifying…
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