BIOELECTRIC PHENOMENA 



329 



Tissue 



Non-medullated 



(splenic of horse) 

 Olfactory of pike . . 



Duration of Rising 



Phase of Action-Current 



Curve (<7 = .ooi sec.) 



ca. 60-70 

 ca. 70 (12°) 



Commissural of 

 anodonta ca. 200 



Mantle-nerve of 

 octopus 8.2-11.3 



Mantle-nerve of 

 octopus ca. 20 



C. Cardiac Muscle: 

 Ventricular muscle 



of mammal 10-15 (body 



temperature) 

 Ventricular of frog . 40-60 {ca. 18°) 



D. Smooth Muscle: 

 Retractor penis of 



dog ca. 2 sec. 



Ureter muscle 0.2-0.4 sec. 



E. Influence of 

 Narcotics: 



Frog's sciatic Normal: 32-4 



(8.9°) 

 Partly narco-" 



tized: 3.4-4.4 

 Normal: ca. 4,; 

 narcotized ; 

 5.2-6 



Pike's olfactory . . . Normal: 55-60 



(ca. 9°); partly 

 narcotized: 

 67-82 



Velocity of Propagation 

 of Excitation-Wave 



ca. 0.47-0.54 met.-sec. 

 60-90 mm. -sec. (5°) 

 1 1 8-1 50 mm .-sec. (13°) 

 160-240 mm.-sec. (20°) 



ca. 2.5 cm.-sec. 



(Varying estimates 

 from I to 5 cm.-sec.) 



2-5~3-5 niet. sec. in 

 O. vulgaris 



ca. 2 met.-sec. in 0. 

 punctatus 



Averages apparently 



2-4 met.-sec. 

 From 50-200 mm.-sec. 



1-7 mm. sec; average 



ca. 5 mm.-sec. 

 Average ca. 



14-15 mm.-sec. 



Average 17.3 met.-sec. 

 in normal; ca. 12 

 met.-sec. in weakly, 

 9.4 met.-sec. in more 

 strongly narcotized 

 nerves 



Average normal veloc- 

 ity: ca. 81 mm.-sec; 



m narcosis 

 mm.-sec. 



ca. 



