PARIS-GREEN. 
101 
The figure below shows the method of distribution of the spray; 
the water flowing from the front of the barrel shows the machine as 
used for watering lawns, &c., but this arrangement need not be supplied 
unless wished. 
This machine is manufactured by Messrs. Boulton & Paul, Rose 
Lane Works, Norwich, and the price is £8 15s. for the spraying 
machine and all its appliances, without the special arrangement for 
watering. 
Of this sprayer, Mr. Lee Campbell favoured me with the following 
further description:— 
“ The barrel is of course mounted on wheels, and has a pump fixed 
to the rear with two delivery pipes, to which are attached whatever 
length of tubing (india rubber) may be necessary. Three men go with 
the apparatus, two men to spray, and one to pump. Should the wind, 
however, be rough, we cannot always use two sprayers. The two 
sprayers assist in drawing the barrel. The rapidity of spraying 
necessarily depends somewhat on the wind, because as the spray is 
effective at at least 50 feet in quiet weather, it follows that in bad weather 
we are reduced to operate on a smaller area. I am able to spray 3000 
trees a day under ordinary circumstances. As to the dashers. It is 
impossible to trust the great proportion of labourers with the responsi¬ 
bility of agitating the liquid.” . . . . “ To my mind we should leave 
nothing to chance ; therefore Messrs. Boulton & Paul, at my suggestion, 
have arranged the pump by lengthening the handle beyond the pump, 
and fixing dashers in the barrel attached to the handle, so that with 
every movement of the pump handle, the dashers are agitating the 
liquid. Stott’s double sprayer, fixed to the end of the tubes, works 
% admirably, and economises the liquid immensely, besides rendering it 
less needful for the men’s hands to be constantly wet.” 
