D 



H 



Imv 

 0.5 sec 



I 



J K L 



mv 

 0.1 sec 



M 



N 



tL h*U\iik&jkJiA+ 



|l mv 

 0.1 sec 



Fig. 2. Effect of phenol on bioelectrical activity of peripheral, central 

 nerve system and neuromuscular conjunction of fish. 



A-F Influence of phenol on action potential of olfactory 

 nerve in pike. 



A-control , B-500 mg/1 , C-1000 mg/1 (10 min), D-2000 

 mg/1 (1 min), E-wash out by Ringer solution (5 min), 

 F-wash out by Ringer solution (15 min). 



G-L Resistance to phenol of the potential generated by 

 olfactory bulb in pike (brain membrane is removed). 

 G-control, H-10 mg/1, 1-100 mg/1, J-500 mg/1, K-1000 

 mg/1 , L-wash out. 



M,N Influence of phenol on miniature potentials of terminal 

 discs in the red muscle of the pectoral fin in the carp, 

 M-control , N-5 min after application of mg/1 of phenol. 



189 



