PEACH AND THE PEAR. /I 



application of hot lye to the bark and roots of diseased 

 trees. On the same principle, he advocates the applica- 

 tion of alkaline washes and washes of sulphates and 

 their compounds. Here copperas, one pound to the 

 gallon of water, might do good or even a half-pound to 

 the gallon. He also thinks that sulphide of calcium may 

 be appled with good effect, and that anything which 

 protects the trunk and the limbs will do good. White- 

 wash made from gas lime will contain sufficient sulphide 

 of calcium for the purpose, and is therefore a valuable 

 tree wash. 



