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MAINE STATE COLLEGE 



At a relatively small expense any of the hand pumps may be 

 made to work automatically. Get a casting similar to that used 

 on a hay tedder, with a small wheel to match, and with a bent 

 crank-shaft the motion may readily be transmitted to the handle 

 of the pump. 



M 



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Fig-. 6. 

 The accompanying sketch, figure 6, illustrates the method. The 

 small wheel, a, works inside of the large cog-wheel. The crank 

 shaft, b, is held firmly in place at the rear of the cart by the iron 

 or wooden supports, c. The handle of the pump is connected 

 with the crank shaft at d by means of a wooden rod. This 

 method has been used to some extent, but I am not aware that 

 it is patented. 



For shrubs, or low growing trees, 

 one of the various knapsack sprayers 

 will be found useful. Figure 7 repre- 

 sents the form made by the Field 

 Force Pump Co., at a cost of $14.00. 

 There are several other pumps not 

 great-ly unlike this, which sell at about 

 the same price. The Eureka, manu- 

 factured by Adamson & Son, Wash- 

 ington, D. C, is an excellent pump, 

 but is more expensive than the others, 

 costing 821.00. The knapsack spray- 

 ers are specially valuable in the small 

 fruit, and vegetable gardens, for spraying currant bushes or 

 potato vines. 



We have not succeeded in finding a nozzle more satisfactory 

 for general purposes than the Climax, manufactured by the 

 Nixon Nozzle & Machine Co., Dayton, Ohio. This nozzle is 

 specially valuable in the application of Paris green, when fine- 

 ness of spray is the great desideratum. It has been suggested 



F g- 7. 



