192 



MANUAL OF GARDENING 



have some kind of bucket pump like those shown in Figs. 221, 



222. On a lawn or in a small garden a tank on wheels (Figs. 



223, 224, 225) is handy and efficient. In such cases, or even 

 for larger areas, some of the knapsack pumps (Figs. 219, 220) 

 are very desirable. These machines are always serviceable, 

 because the operator stands so near to his work; but as they 

 carry a comparatively small quantity of hquid and do not 



throw it rapidly, they are expensive 

 when much work is to be done. 

 Yet, in ordinary home grounds, the 

 knapsack pump or compressed-air 

 pump is one of the most efficient 

 and practicable of all the spraying 

 devices. 



For large areas, as for small or- 

 chards and fields, a barrel pump 

 mounted on a wagon is best. Com- 

 mon types of barrel pumps are shown 

 in Figs. 226, 227, 228. Commercial 

 plantations are now sprayed by 

 power machines. There are many 

 good patterns of spraying machines, 

 and the intending purchaser should 

 send for catalogues to the various 

 manufacturers. The addresses may 

 be found in the advertising pages 

 of rural papers. 



As to nozzles for spraying it may 

 be said that there is no one pattern 

 that is best for all purposes. For most uses in home grounds 

 the cyclone or vermorel type (Fig. 233) will give best satisfac- 

 tion. The pump manufacturers supply special nozzles for 

 their machines. 



233. Cyclone or vermorel type 

 of nozzle, single and multiple. 



