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Improved Vehicles for Col- Bright

There is often a difficulty in obtainors. One measure of saturated solution of ing the oils bright after boiling or heating them borax, with 4 of linseed oil. The pigment with the lead solutions. The best way on a may be ground with the oil or the mixture. small scale is either to filter the boiled oil Or, a solution of shellac with borax, as in through coarse woolen filtering paper, or to making Coathupe's ink. (See No. 2484.) expose it in a bottle for some time to the sun 2725. Improved Vehicles for Water Colors. Water colors, mixed with gelatine, and afterwards fixed by washing with a solution of alum, or; curd of milk, washed and pressed, then dried on fine net, and when required for use, mixed with water and the coloring matter. or in a warm place. In larger quantities, the oil may be filtered through Canton flannel bags.