CALCIUM ARSENATES AND ARSENITES. 95 



Safety Lines for Spraying with Commercial Calcium Arsenate. 

 AB, clear weather; CD, cloudy weather. 



Fig. 7. —Apple. 



Fig. 8. — Pear. 



SO (.0 70 go 





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Fig. 9. — Cherry. 



Fig. 10.— Plum. 



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 SO 60 2(2 ?0 90 „ i'S-t. ^2 7g So 90 



Fig. 11.— Peach. 



Fig. 12. —Elm. 



