234 Methods of Preventing and Checking 
and put into the tub with the sulphate of copper. The whole 
must be well stirred. 
The tomato, a vegetable now cultivated upon a large scale 
by market-gardeners and ordinary gardeners, is much affected 
in some seasons by a fungus of the family Peronosjyorece. 
Sulphate of copper bouillies have been proved to be efficacious 
Fig. 5.— For downward sprajiug. 
against this. These may be put on with the Eclair, or other 
" Knapsack," machines. 
Sulphate of copper may be used in the form of powder for 
mildews of various kinds. A good preparation of this con- 
sists of 
Parts 
Sulphur . 50 
Quiclilime ....... 3 
Sulplmte of copper 10 > 
Pit -coal dust, very finely crushed , . .37 
100 
Another powder, the Skawinski,' active against fungoid 
growths, and used for the vine mildew, is composed of 
40 lb. of sulpliate of copper, 
C lb. of quicklime, 
154 lb. of pit-coal dust, very finely crushed. 
This may be put on with the soufflet, or bellows (Fig. 6), 
which constitutes a very useful apparatus for small holders, 
' The Skawinski powder is obtainable of MM. Skawinski, Lesparre, MMoc, 
France, at about 9.<. Gd. per cwt. 
