256 Preventing and Checking Attacks of Insects and Fungi. 
quantities are put on at a time, with hand bellows, or soufflets. 
The hop-planters make use of a machine drawn by a horse 
termed a " sulphurator," a sketch of which is given in 
Fig. 26. 
This machine consists of a hopper in which the sulphur, or 
other powdered material, is placed. Air is driven by a fan up 
a blast pipe, into which the sulphur is fed by a feed-roller with 
a revolving brush. It is thence distributed in a dense wide- 
spreading cloud. Having large travelling wheels, and being 
light, with little friction, the draught is very easy. The feed 
arrangement can be adjusted while the machine is in motion, 
by which the amount of sulphur or other powder can be 
regulated. About five acres per day can be sulphured with 
this machine. 
The price of the "sulphurator" is 12Z. 12s. By cutting a 
hole in either side of the hopper, the sulphur or other powder 
may, by inserting a funnel, be directed downwards and dis- 
tributed over fruit-bushes and low crops, as suggested on 
page 231. 
Sulphate of copper solutions have been tried by a few hop- 
planters for mildew, but as yet no definite conclusions have been 
arrived at. It is believed that sulphate of copper would be 
efficacious against this mildew as it is against the vine mildew 
(Peronof^pora viticold). 
There are other preventives and remedies made use of in 
hop plantations for insects and fungi, and other machines for 
applying them. The chief and most important have, however, 
been given. 
It may be explained that in the limited space of an article, 
wliose inception dates only from the April Council Meeting, 
it is impossible to allude to all. the numerous insect and 
fungoid evils that beset the crops of cultivators, and to the 
many devices and inventions that human ingenuity has con- 
ceived to circumvent them. 
Charles Whitehead. 
