MARBLING.
Sienna Marble. The ground of Sienna marble is white lead; the work is then to be evenly gone over with white paint mixed with equal quantities of turpentine and oil. After this, mix two light tints, the one consisting of yellow ochre and white lead and the other of vermilion and white lead, both mixed with equal quantities of oil and turpentine, and with separate tools dab patches on the white paint whilst yet wet, and with a brush well soften the patches together, great care being taken not to allow the red tint to be too dominant.
On a palette, on the side of which is placed a tin dipper containing turpentine, place a small quantity of blue black, the oil colors sold in collapsible metal tubes are the best for marbling, and a small quantity of purple lake; then with a sable pencil dipped in turpentine take a thin wash of the blue black and vein on the wet work, and soften; then work up the veins further with more blue black, so that the color may be a little darker, but still thin; after this, with a flat camel's hair fitch dipped in turpentine, and a small quantity of the purple lake and blue black mixed, apply very thin washes in some of the open spaces, and soften lightly. When dry, put in whites, with white lead mixed with turpentine, using a sable pencil, and subsequently softening the work with a badger. When the paints are quite hard, apply a light varnish.
Italian Pink Marble. Over a white ground apply a coat of white paint as in the last case, compound tints of ultramarine and white lead and vermilion and white lead, each being mixed with equal quantities of oil and turpentine, and with these dab patches, as already described, and soften.
On the palette place some Indian red and with a small
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