CALCIUM ARSENATES AND ARSENITES. 



97 



//uTnidltc, 



SO %. 



9 <^' 



Fig. 13. — Safety line.? for spraying with commercial calcium arsenate in clear 

 weather: 1, pear; 2, elm; 3, apple; 4, cherry; 5, plum; 6, peach. 



?S 



S'O 



V ^6' 



-5 



7S 



^S 



J-ZuTnLcLitLf 

 (^O 7o ^O 



^> 



K 



N 



^^^ 





JX 



X^ 



IP 



X 



\ 



^. 



\ 



N^ 



\ 



X 



^^ 





Fig. 14. — Safety lines for spraying with commercial calcium arsenate in cloudy 

 weather: 1, pear; 2, elm; 3, apple; 4, cherry; 5, peach; 6, plum. 



