New York AGRICULTURAL EXPERIMENT STATION. 205 
Place the full quantity of lime in the kettle or barrel, or what- 
ever the receptacle may be, and start it to slake with water, using 
enough to prevent the lime from being air-slaked, and not enough 
to drown it. As soon as the boiling action commences, add the 
sulphur, which has just previously been made into a paste with 
water. Stir this in thoroughly and pour in water in small quan- 
tities, to keep the mixture in the form of a rather thin paste. 
After the slaking of the lime, then add the caustic soda, in lots 
of about two pounds, at short intervals, and stir till the soda is 
dissolved. As soon as the chemical action has ceased, dilute the 
mixture with cold water to make the required amount. The 
time of cooking will be shortened by using warm water in slaking 
the lime, and in making the sulphur into a paste. This wash is 
advised for experimental purposes, or when it is not possible to 
use the sulphur wash prepared by external heat. 
Use the same grades of lime and sulphur, flowers of sulphur 
preferably, as for the lime-sulphur-salt wash. For extensive 
spraying, purchase from wholesale druggists the commercial caus- 
‘tic soda, put up in fifty pound cans. Upon exposure to the air, 
the caustic soda absorbs moisture and greatly increases in weight. 
Odd amounts of the soda may be kept dry in covered Mason jars. 
To prepare small quantities of the wash one may use any of the 
common soda lye brands, as sold by grocers. 
