22 



Should future investigations confirm the foregoing experiments — and 

 I have not the slightest doubt that they will— then this method will 

 be much more effectual than any other now known; and as the 

 poison IS applied to trees in the spring or early part of the sum- 

 mer, not only will the Apple-worms be destroyed by it, but it will 

 also destroy the Canker-worms and other leaf-eating insects. 



