550 The Philippine Journal of Science 1920 
V Fé 
vt Ss 
T6 Pe 
6 parts KC! oe /4 % 
re) 
T2 oS 
2 parts KCI Pome 
T5 
— 
5 parts KCI 
43 4 T < 
g 
1 part KH 2PO, 1 part KH,PO, 
/ 
1 part KH,PO, 
Fic. 2. Diagram for series I, showing leaf injury. 
