Dissolve white vitriol and litharge, of each 14 lbs., in vinegar. 82 gals.: add whale, seal, or cod oil, 1 tun, and boil to dryness, continually stirring during the ebullition. The next day, decant the clear portion; add linseed oil, 12 gals., oil of turpentine, 3 gals., mix well together. The sediment left is well agitated with half its quantity of lime water, used for some inferior paints under the name of "prepared residue oil." This oil is used for various common purposes, as a substitute for linseed oil, of which the following paints are examples:-

1. Pale Green

Lime water, 6 gals; whiting and road dust, of each, 1 cwt.; blue-black, 30 lbs.; yellow ochre, 28 lbs.; wet blue (previously ground in prepared residue oil,) 20 lbs.; grind well together. For use, thin with equal parts of prepared residue oil and linseed oil.

2. Bright Greet

Yellow ochre and wet blue, of each, 1 cwt.: road dust, l½ cwt.; blue-black, 10 lbs.; limewater, 6 gals.; prepared fish oil, 4 gals.; prepared residue and linseed oils, of each, 7½ gals.

3. Lead Color

Whiting, 1 cwt.: blue-black, 7 lbs.; white lead, (ground in oil,) 28 lbs ; road dust, 56 lbs.; lime water, 5 gals.; prepared residue oil, 2½ gals.

4. Reddish Brown

Lime water, 8 gals.; Spanish brown, 1 cwt.; road dust, 2 cwt.; prepared fish, prepared residue and linseed oils, of each, 4 gals.

5. Yellow

Substitute ochre for Spanish brown in the last receipt.

6. Black

Substitute lamp or blue-black for Spanish brown in No. 4.

7. Stone Color

Lime water, 4 gals.; whiting, 1 cwt.; white lead (ground in oil), 28 lbs.; road dust, 56 lbs.; prepared fish, linseed, and prepared residue oils, of each, 3 gals.

8. Chocolate

Nos. 4 and 6 mixed together so as to form a chocolate color.

Remarks

All the above paints require a little "driers." They are well fitted, by their cheapness, hardness, and durability, for common out-door work.