FUNGICIDES, FOR PLANT-DISEASES. 51 



oil-stove, until the house is filled with the vapor. It should 

 never be heated to the burning point, as burning sulphur 

 quickly destroys most plants. To prevent burning, place 

 the sulphur and pan in a pan of sand, and set the whole 

 upon the oil-stove. It may also be used in water, in the 

 proportion of an ounce of sulphur to 5 gallons of water. 



Sulphur and lime. ^ A mixture of sulphur and lime in equal 

 parts by weight. For dusting on surface mildews. 



Sulphuric acid. — Used in connection with sulphate of iron 

 or of copper, which see. 



