APPLIANCES 



The character of the appliances used for spraying 

 is a matter of considerable importance. The chief 

 points to be aimed at are to have a machine sufficiently 

 powerful to send the liquid to the top of the highest 

 trees in the plantation, and to secure a very fine and 

 even distribution of the liquid. An ordinary garden 

 syringe, even with the finest rose-jet attached, gives 

 much too coarse a spray, and is a very wasteful, and, 

 therefore, expensive piece of apparatus : when a 

 syringe is used, one specially designed for spraying, 

 such as the " Abol " syringe, should be selected. The 

 various knapsack sprayers, of which there are several 

 forms on the market, are the most convenient for use 

 in gardens, and in small plantations of an acre or two. 

 They generally hold about three gallons, and are 

 strapped on to the back of the workman, who with 

 one hand works the handle of a pump fixed inside 

 the sprayer, whilst with the other he directs the jet of 

 liquid, which is forced out through a tube attached to 

 it. One of the first forms of knapsack sprayer — 

 Vermorel's Eclair — is still, perhaps, the best on the 

 market. It costs about 30J-. The knapsack sprayers, 

 however, are not sufficiently powerful to deal satis- 

 factorily with thick liquids, such as lime-wash. 



The form of nozzle fitted to the jet is,. naturally, a 

 i6 



