( 6 ) 
have been drip. We give no opening for possibility of 
mischief occurring from this cause where our advice is fol¬ 
lowed ; but (having noted this duly) there is no harm in 
mentioning here that where the fine spraying is properly 
carried on, it is at least open to doubt whether any risk in the 
above way is incurred. 
In the course of reporting it appeared that one observer fed 
his mares and foals beneath the Paris-greened trees with no 
ill effects. Mr. Lee Campbell, of Glewstone Court, Boss, also 
alluding to this point, wrote me :—“You will recollect that I 
sprayed the trees this year ten times with Paris-green, partly 
2 oz. to the 20 gallons, and later with only one, and during 
the caterpillar season (in fact, all the year until the fruit was 
becoming ripe) fowls have had a free run all over the field.” 
With regard to Bees, as the trees should not be sprayed token 
they are in blossom, this gets over any fear of Bees being 
poisoned by sucking the honey. 
Spraying machines. —One great point, in selection of spraying 
machines, is that either by mechanical contrivances (when on 
a large scale), or in the portable forms, by arrangements 
which will make the movement of the bearer serve the same 
purpose, the mixture should be so kept in movement that the 
powder should not settle down. It is necessary to keep the 
mixture in agitation during application, and also it is neces¬ 
sary to have the barrel “ well washed out after it has been 
filled ten or twelve times.” If this is not done the mixture 
will very soon be too weak at the top and too strong at the 
bottom, and the gradually increasing settlement will presently 
(in all probability) cause a seriously too strong overdose. The 
mixture should be kept at an even strength throughout, during 
the whole time of distribution, and also, as before mentioned, 
it should be so distributed that it will be thrown as a fine 
spray or mist, and will rest and remain on the sprayed leafage 
as a fine film or dew. 
Various forms of apparatus tvould answer this purpose; but, 
to give mention of a few different kinds of spraying machines 
which have been found to answer here, there is, for use in 
fruit grounds where the trees are too closely packed with 
undergrowth for anything but a portable form to be admissible, 
the kind known as the knapsack sprayer. The knapsack 
pump, 1’Eclair, No. 1, is a can or reservoir, which may be 
carried on a man’s shoulders, and by means of a hose and 
nozzle throws a fine spray to the height of 14 or 15 feet. 
This spraying machine answers well so far as the spray 
reaches. It is procurable from the English agents of M. 
Vermorel, Messrs. Charles Clark & Co., Windsor Chambers, 
