INSECT PESTS AND DISEASES. 



151 



Another excellent machine adapted to larger growers 

 is made by Messrs. Boulton & Paul, Rose Lane Works, 

 Norwich (Fig. 37). It is fitted with a powerful pump, 

 and two jets and sprayers, and also automatic dishes for 

 keeping the fluid properly mixed. The figure below shows 

 the mode of distributing the spray. The apparatus in 

 front for watering lawns can be attached or not as re- 

 quired. A large amount of work can be got through in 

 a day with this pump, which will deliver the spray to a 

 height of thirty to forty feet. 



SPRAYING MACHINE. 



Fm. 38. 

 SNOW'S SPRAYING NOZZLE. 



Messrs. Hemmingway, the manufacturers of the London 

 Purple, also supply a suitable pump for the purpose. Or 

 one of Snow's Patent Nozzles (Fig. 38) may be attached 

 by a length of india-rubber hose, to any garden pump. 

 A lad can then continue pumping whilst the operator 

 walks up and down the rows of trees, directing the spray 

 above and below the foliage. 



Paris Grreen (or Emerald Green) may be obtained of 



