18 FARMERS’ BULLETIN 650. 
development of necessary facilities for water supply. (See fig. 11.) 
Ordinary feed cookers or jacketed kettles are also very satisfactory. 
Small steam boilers of a few horsepower capacity serve especially well 
for a medium-sized orchard. . 
Where the amount of concentrate to be made is considerable, as for 
a large orchard or for the fruit growers of a neighborhood, it will pay 
to construct a more elaborate cooking plant. A convenient outfit is 
shown in figure 12. In the construction of these plants careful atten- 
tion should be given to the arrangement of the cooking vessel, the 
water supply, and the arrangement for drawing off the cooked wash. A 
Oo Ne 
=, ON ‘OS eee = 2S. om 
1 ~ -_o Bakar od 
Fig. 11.—Lime-sulphur cooking outfit for preparing wash for small to medium sized orchards. Prepared 
by E. W. Scott. (Original.) 
12-horsepower boiler will furnish sufficient steam for a cooker of 300 
gallons capacity. However, if a steam engine is to be used for run- 
ning the agitator, a somewhat larger boiler will be necessary. The 
cooking vessel may be either of wood or iron, though an iron vessel is 
usually more satisfactory owing to the difficulty in preventing leakage 
of wooden vessels. If the cooking vessel is not provided with a pump 
it should be so elevated that the cooked concentrate may be drawn off 
by gravity into a settling tank or storage vessels. Vinegar barrels, or 
barrels which have been used for acids, should not be employed in 
storing the solution, as the acid breaks down the concentrate. Kero- 
sene oil barrels and whisky barrels are used to a large extent. 
