DlSEASi:^< OF THE RosE. 121 



a,s it is convenient to carry through the cntl of the 

 house. Cap thi-s end with a jjct cock or valve, leaving 

 the same partially open for the discharge of condensa- 

 tion. This pipe may he painted as already described 

 with the sulphur wash, or two small galvanized iron 

 troughs as seen on page 100 can be jDermanciitly placed 

 on this pipe, a small quantity of the wash evaporated 

 from them, Avhile the balance of the pipe is wrapped 

 to prevent radiation of heat when not wanted in tlie 

 house. In this way, all houses needing it can be 

 served at once bj- turning the steam into thi.' vapoi'izing 

 main. Two applications a week will in most cascj pre- 

 vent its gaining a foothold. Vai'ious formulas are also 

 recommended by those who have used them. After 

 prei^aring them thej' are applied to Ihe foliage in the 

 form of a spray. The oldest of thi^se is the one given by 

 Peter Henderson many years since. 



"Boil 3 pounds of sulphur and 3 pounds of lime in 

 6 gallons of water until it is reduced to 2 gallons; allow 

 the liquid to settle until it becomes clear, then put it 

 in a jar, or bottle it for use. Use one gill of this to 5 

 gallons of water and apply to the foliage by means of a 

 syringe." 



To this there are two objections. It can not be pro- 

 cured ready for use, and appliances for compounding 

 it are not always at hand. Ailother objection is, no 

 matter liow carefully the liquid is poured off after boil- 

 ing, the lime in it will whiten and thus greatly disfigure 

 the foliage, making the buds unsalable. 



