CALCIUM ARSENATES AND ARSENITES. 



95 



Safety Lines foe Spraying with Commercial Calcium Arsenate. 

 AB, clear weather; CD, cloudy weather. 



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Fig. 7. — Apple. 





Fig. 9. — Cherry. 



Fig. 10. — Plum. 



//urnidity 



Fig. 11.— Peach. 



Fig. 12. —Elm. 



