CALCIUM ARSENATES AND ARSENITES. 93 



Safety Lines fob Spraying with Pure Acid Calcium Arsenate. 

 AB, clear weather; CD, cloudy weather. 



70 20 9o 



Fig. 1. —Apple. 



Fig. 2.— Pear. 



V5 7i- 



Fig. 3. — Cherry. 



Fig. 4. — Plum. 





to 9o 



Fig. 5. — Peach. 



