A waterproof paint for van sheets may be made by boiling together, at a temperature of 500° F. for four or five hours, 1 1/2 gal. of linseed oil, 2oz. of litharge, 2 oz. of umber, and just sufficient vegetable black to colour it. Another paint is made from 1 gal. of boiled linseed oil, 1/2pt. of japanners' gold size, l1b. of vegetable black, and l1b. of best patent driers. The sheet should be laid upon a table and painted with either of the above paints, dried in the open air for several days, then again painted and dried.