MAINE APPLE DISEASES. 383 



dilution purposes. For a 200-gallon tank 4 50-gaIlon casks 

 may be used. The dilution barrels are placed on the extreme 

 front edge of the platform. A hole should be bored in a stave 

 close to the bottom of each of these barrels. This hole should 

 be large enough so that at this point a piece of rubber tubing of 

 an inch or more internal diameter can be attached. The attach- 

 ment may be made by screwing a short piece of brass pipe into 

 the hole in the stave and sliding the rubber tube over the por- 

 tion that projects outside. For added security against leaking 

 a brass lock-nut with rubber washer may be screwed up against 

 both inside and outside of the stave if the hole is not too close 

 to the bottom. The rubber tubing should be long enough to 

 reach well above the top of the dilution barrels and while the 

 latter are being filled the free end should be held by means of 

 a string tied around the tube near the end and hooked over a 

 nail driven into the top end of one of the staves. 



When the dilution barrels are filled the spray tank is driven 

 alongside the platform, as close to them as possible. Standing 

 on the spray tank the operator removes the free ends of the 

 tubes from their support and inserts them quickly in the opening 

 in the top of the spray tank. In this way the tank is rapidly and 

 easily filled, and the best possible conditions supplied to secure 

 a high grade mixture. In Fig. 266 the hose from the two bar- 

 rels on the right are let down as in filling the spray tank. On 

 the next barrel to the left the hose is hooked up as already de- 

 scribed. In place of the hose large iron or brass faucets may 

 be screwed to the bottom of the barrels and so arranged that 

 they will open into a common conductor leading to the spray 

 tank. However, on account of the corrosive action of the mix- 

 ture the iron faucets will soon rust out. 



Where running water is available it may be conducted to the 

 platform with a garden hose or a metal pipe may be used, so 

 arranged that it may be taken down or emptied before cold 

 weather. Where running water is not available the platform 

 may be erected alongside of a well, cistern, stream or pond. A 

 cheap iron pump is placed on the platform, high enough so it 

 will deliver over the tops of the barrels and connected with the 

 water supply with a lead pipe. 



