1900 SUPPLEMENT—RECENT INTRODUCTIONS, &c. 683 
Spraying—continwed. 
at once withont stopping the engine, and thus the man 
in charge of the engine can keep one or the whole of 
the jets supplied at an even pressure. The robber of the 
hose being of the best quality, it is not affected by either 
Bordeaux Mixture or the clear solutions of copper similarly 
employed. In cases where it is necessary to use Paris 
Green or similar arsenical preparations that are heavy 
and not soluble, an agitator is fixed in the receptacle in 
which they are held, and this is worked by means of a 
belt from the fly-wheel of the engine. 
With Merryweather’s apparatus six men can thoroughly . 
spray twelve acres of large Cherry- or Apple-trees, taking 
100 trees to the acre, in six hours, or six acres of Hops 
Spraying—continued. 
the operator wherever required, under glass or ontside. 
The machine will hold about four gallons of liqnid, and is 
easily carried on a man’s back. The pump-handle comes 
under one arm, and the sprayer, with the tube attached, 
under the other. Itis most easy to work, and sends ont a 
fine mist-like spray with considerable force. In the hands 
of a capable man, the spray can be made to fall on 
either the upper or the lower side of the foliage, infested 
with insect pests or fnngi. For Roses, fruit trees on 
walls, and low-growing subjects, this apparatus is extremely 
useful and yery economical, as much less liquid insceticide 
or fungicide is wasted than is the case with the ordinary 
syringe or garden-engine. Another advantage is that it 
Fic. 698. 
Paddock Wood, 
jin the same time. The plant is also available for 
Spraying Potatoes and root-crops, Tea plantations, Vines, 
Tobacco plants, &c. The engine may be employed for 
irrigation work or any pumping duties on an estate or a 
farm. As a fire-engine it is also very valuable, the boiler 
being capable of raising steam from cold water to working 
pressure in ten minutes from the time of lighting the 
fire. It will deliver 100gals. of water per minute, and 
throw a powerful jet to a good height. By throwing the 
pump ont of gear the engine can be used to drive any 
machinery, such as chaff-cutters, cream-separators, circular 
saws, &c. 
The small Knapsack Engine is a most useful apparatus 
to have, as it can rapidly be moved abont op the back of 
MERRYWEATHER’S SPRAYING PLANT—At work on Apple-Trees at the Farm of Mr. Tsaac Reader, 
Kent. 
can readily be turned to any part, where the larger engines 
on wheels could not be taken. 
For Spraying larger trees in quantity with insecticide, 
there are engines specially made by Messrs. Boulton and 
Paul, of Norwich See Fig. 700. In this case, the engines 
are fitted with powerful pumps, haying automatic dashers 
attached; these keep the liquid in constant agitation 
during use, a most important point when employing Paris 
Green or London Purple, thus ensuring a uniform strength. 
If the Stott Sprayer is fitted to these engines, a fine spray 
is delivered that will quickly moisten every part of the 
tree. See also Syringe. 
Another effective Spraying-pump is known as Gould's 
Pomona. It is fitted with an agitator, so that insecti- 
