376 



Dr. A. D. Waller. 



[Mar. 17, 



(2.) The augmented conductivity of the living skin from (12 -5) 

 25 to 35 in consequence of tetanisation. 



\B + 



^o mm. 



20 mm. 



Fig. 1 (Nos. 4199— 4200).— Skin of Breast 5 hours after amputation. Tested by 

 tetanising currents for periods of 5 sees, each from a Berne coil at 5000 units, 

 supplied by 8 Leclanche cells. Conductivity at outset of experiment == 5, and 

 calculated resistancs = 560,000 ohms. After tetanisation the conductivity 

 was raised to 125 (= 224,000 ohms ; after further tetanisation it rose further 

 to 25 (= 112,000 ohms), when the record commenced. 



A, living. — Conductivity at outset 



25 



1st response to tetan., 



m. 



-,br. 



+ , 



= +0-0120 volt. 



2nd 



m. 



+ , br. 





= +0-0092 ,, 



3rd 



m. 



-,br. 





= +0-0100 „ 



4th 



m. 



+ , br. 





- +0-0076 „ 



Conductivity at end 









= 35 











=- 115 



1st response to tetan., 



m. 



-, br. 



+ , 



= +0-0004 volt. 



2nd 



m. 



+ , br. 





= -0-0004 „ 



3rd 



m. 



-,br. 





- +0-0004 „ 



4th 



m. 



+ , br. 





= -0-0004 „ 



Conductivity 









- 115 



