118 



THP: SIGNS OF LIFE 



[LECT. 



A 



JOO 



B - 



(M + 

 \B - 



10 



20 /T7//75. 



B _ 



o 



o /o 20 mm. 



FlG. 50 (Nos. 4199-4200). Skin of breast 5 hours after amputation. Tested by 

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

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

 calculated resistance = 520,000 ohms. After tetanisation the conductance was 

 raised to 12.5 (= 196,000 ohms); after further tetanisation it rose further to 25 

 ( = 88,000 ohms), when the record commenced. The resistance of the galvanometer 

 and electrodes = 20,000 ohms. The deflection by -j^th volt through i megohm = 27. 



A , living. Conductance 



1st response t 



2nd 



3rd 



4th 



Conductance 

 \ boiled. Conductance 



ist response t 



2nd 



3rd 



4th 



Conductance 



