THE 
GARDEN YARD 230 
To make 12 gallons of Bordeaux, use one pound 
of copper sulphate and one pound stone lime. 
Be sure to use wooden vessels, as vitriol eats 
tin; an oil barrel, sawed in halves, makes good 
tubs for dissolving the vitriol and slaking the 
lime. Put one to one and a half gallons of 
water in the tub and hang the vitriol over night 
in a piece of burlap, which just touches the water. 
Slake the lime in the other tub by adding water as 
fast as the lime takes it up, and no faster. When 
both are properly dissolved, fill the spray barrel 
about one-eighth full of water and add the solu- 
tion of vitriol. Add enough water to the lime 
barrel to make 23 or 4 gallons and then strain the 
slaked lime into the spray barrel through a 
wire fly-screen or two thicknesses of potato burlap. 
Fill the barrel with water enough to make 12 
gallons of mixture, and stir thoroughly for some 
minutes. If your spray has an “agitator” 
attachment, you need not trouble further, but 
if not, you must stir the mixture thoroughly 
every few minutes while spraying. 
Bordeaux mixture should be made fresh for 
each spraying, but the vitriol and lime may be 
prepared ahead in large quantities, if they are 
not mixed, and are kept covered to prevent 
evaporation. Thus forty pounds of vitriol may 
be dissolved in 40 gallons of water, and forty 
