49 



Fq. No apparent effect. 



Pio. Three leaves affected. 

 PlOa. No apparent effect. 

 Pii. 



Flla. „ 



Observations on 4th day. 



No further effects were observed. 



Observations on 5th day. 



Pi a. All leaves had dropped off. 



P2. Two leaves quite yellow, 



P2a. Most of the leaves dying. Many had dropped off. 



I3. Many leaves dropping. 



P3a. Most of the leaves dying. 



P4. Leaves dying. All affected — yellowish white colour. Two 



had dropped and only six (all dying) remained. 



P4a. A number of leaves dying. 



F8. One leaf had dropped. 



Observations on 6th day. 



P2a. Only three leaves remaining. These were yellow in colour 



and broke oft on touching. 

 P3a. A number of leaves quite yellow. 

 P4. The remaining four leaves dropped off on touching. 



Observations on 7th day. 



P2. The two yellow leaves and a twig dropped off on touching. 



No further harmful effects were observed and no observations 

 were made again till the 15th day. 



Observations on 15th day. 



Pi. Plant recovering. Young leaves sprouting. 



P2. Quite.healtliy. 



P2a. Plant recovering. 



1. 3. Recovered. 



P3a. Quite recovered. 



P4. Quite recovered. Three new leaves. 



P4a. Recovering well. 



1. 5a. Quite healthy. 



F7a. This plant had lost no less than six leaves, which had 

 dropped off, the remaining five were unhealthy. 



