1556. Second—When the painting is finished let it dry four days, and then cover the front with a coat of mastic varnish.
1557. Materials required, are a palette, palette-knife, flat varnish brush, three sizes of bristle brushes, three sizes of table brushes, drying oil, mastic varnish, spirits of turpentine, Grecian varnish.
1558. Colors used are oil colors in tubes. Those generally needed are silver white, Naples yellow, yellow ochre, brilliant yellow, vermilion, Prussian blue, raw sienna, ivory black, carmine, yellow lake, Van Dyke brown.
1559. If economy is an object, some of the above-mentioned materials can be dispensed with.