The Journal of the Board of Arts and Manufactures for Upper Canada, July 1867
At this season people generally set their houses in order and prepare for the hot weather. As whitewash is in great request it may not be inappropriate to publish the following recipe. It is intended for buildings or out door use but is also adapted for walls. Let us say here that we have never found anything equal to glue for fixing the lime on the walls. It should be liberally applied, say half a pound to a washtub full of whitewash, and if well stirred in will never fail. There is no greater nuisance than whitewash that rubs off on everything that touches it. - We quote from the Chemical Gazette:—
"Take a clean water tight barrel, or other suitable cask, and put into it a half bushel of lime. Slack it by pouring boiling water over it, and in sufiicient quantity to cover five inches deep, stirring it briskly till thoroughly slacked. When slacking has been effected, dissolve in water and add two pounds of sulphate of zinc and one of common salt. These will cause the wash to harden and prevent it cracking, which gives an unseemly appearance to the work. If desirable a beautiful cream color may be communicated to the above wash by adding three pounds of yellow ocher. This wash may be a lied with a common white wash brush, and wi be found much superior, both in appearance and durability, to common whitewash."
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