590 Agricultural Experiment Station, Ithaca, N. Y. 



11. The arsenic which falls upon the soil seems to become or to 

 remain in an insoluble condition, and passes downwards, if at all, to 

 a very little distance and then only by the mechanical action of 

 water in carrying it through spaces in the soil. 



19. The canker-worm can be killed by honest spraying with Paris 

 green, 1 part to 200 gallons of water. 



L. H. BAILEY. 



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