CALCIUM ARSENATES AND ARSENITES. 95 



S.vFETY Lines for Spraying with Commercial Calcium Arsenate. 

 AB, clear weather; CD, cloudy weather. 



Fig. 7. — Apple. 



Fig. 8. — Pear. 



Fig. 9. — Cherry. 



Fig. 10. — Plum. 



Fig. 11. — Peach. 



Fig. 12. —Elm. 



