Tke Bulletin. 



21 



Heat from 4 to G villous of ^\■;^tl'l■ lo bijilin<i- over firo in hii'ii'e 

 iron, (ir lirass kdlle. Mix ihc sulphur with enongh hot water to 

 make a thin paste and pour it into the kettle with the hot water. 

 N'ow add the lime, and as it slakes dash in a little cold water, as 





Fig. 11.— Tree thoroughly sprayed with Lime-sulphur wash. Note the whitened appearance of 

 tree, and note that every twig is covered. Original. (Photo by R. W. Collett). 



needed, to keep it from boiling- over or to keep it from becoming drv. 

 Keep the fire going and stir the mixture frequently. As ihe slaking 

 ceases keep it boiling from the tire for half an hour longer, then 

 dilute with water (cold is all right), to make the 50 gallons; strain 

 through a fine wire screen or cloth to remove all sediment, and spray. 



