(a) 62 lbs. (1 bushel) quicklime, slake with 12 gallons of hot water.
(b) 2 lbs. common table salt, 1 lb. sulphate of zinc, dissolved in a gallon of boiling water.
(c) 2 gallons skimmed milk.
Pour (b) into (a), then add the milk (c), and mix thoroughly.
(3) “Light House” Whitewash:
(a) 62 lbs. (1 bushel) quicklime, slake with 12 gallons of hot water.
(b) 12 gallons rock-salt, dissolve in 6 gallons of boiling water.
(c) 6 lbs. of Portland cement.
Pour (b) into (a), and then add (c).
Note.—Alum added to a lime whitewash prevents it rubbing off. An ounce to the gallon is sufficient.