100 A. B. Plowman — Electromotive Force in Plants. 



10 



I 







Fig. 4. 

 Reaction Current: 



v/50 NaCl. 







5 







V 



















1 



2 



3 4 



5 



6 



7 



Fig. 5. 

 •Reaction Current: n/2.5 KaCl. 



1 ICT" 215 30 40" : 50" 



60 70 



Fig. 6. 



5§§?ii°5 current: N / 50 znso 4 



Fig. 7. 



Fig. 8. 

 R§§9*i£0 Current: N/50 Na 2 HP0 4> 



Omin. 10 20 30 40 50 €0 70 



