MAINi; AGRICULTURAL EXPERIMENT STATION. I91O. 427 



the tops of the posts on the outside around the four sides, pieces 

 of 2x6 or equally strong material are spiked with the edges up— 

 these to serve as sills. Other cross sills may be necessary for 

 added strength, varying with the size of the platform. Lastly 

 a floor of good sound plank is laid over the sills. The size of 

 the platform varies somewhat»with the location and needs of the 

 user, but it should be large enough to accommodate the barrels 

 for the stock solutions and dilution barrels, and leave sufficient 

 room to move about ; 10x12 feet is large enough for most places. 

 Fig. 83 shows the platform in use at Highmoor Farm. The 

 higher platform with the large tank is for water storage. 



The dilution vessels should be large enough so that both to- 

 gether will contain enough liquid to fill the spray tank. That 

 ib, for a lOO-gallon tank 2 50-gallon casks will be required for 

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

 \)C large enough so that at this point a piece of rubber tubing of 

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

 nient 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. 83 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 



