14 



Spraying Machines. 



[APRIL, 



sides. When this position is found the agitator handle is sawn off, 

 and the end shaped as in Fig. 6, and the connecting rod joined 

 up to it by a bolt running right through, as at the pump handle 

 end. In the machine represented by Fig. 5 the connections are 

 made at 1 ft. 2 in. up the agitator handle, and 1 ft. 8 in. up the 

 pump handle, the connecting rod being 2 ft. long. The pump 

 is coupled to the suction strainer by a piece of india-rubber tube. 

 The pump should be fitted with three delivery taps. Two of these 

 are for the spraying tubes, and one has a short piece of tube 

 taken from it into the top of the tank. This is used when start- 

 ing to spray with Bordeaux mixture or any like solution, which 

 will settle on standing. The other two taps are closed and this 





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Fig. 6. — Agitator for Cistern 



one is opened, and a few strokes of the pump are given, until the 

 fluid is thoroughly mixed. After this the agitator will prevent 

 all settlement, and the third tap is shut off. The spraying tubes 

 and nozzles should be bought with the pump, The metal part 

 consists of a brass tube 4 ft. long, fitted with a tap at one end 

 and a spraying nozzle at the other ; and the rubber tube should 

 be of any length convenient for the number of rows of trees pro- 

 posed to be sprayed at one journey across the field. The tubes 

 must be firmly fixed to the taps, or the pressure will drive 

 them off. 



Shoulder-straps are used when the machine has to be carried 

 full for any considerable distance, but are not needed for the 

 short shifts when spraying is going on. The machine costs 

 little to make, and it is easier to carry it than to wheel a 



