1 8 Gee, TJie Electrical Resistance of the Human Body. 



Exp. I. Dry contact on brass rods. Diameter = ^". 

 These rods were held in the hands. 



A.C. Measurement. 

 £>j Ohms. 



5080 



T.S 



JOO 



D.C. Measurement. 

 Direction of Flow. Ohms. 



Mean . . 



Left to Right... 15000 



4450 j Right to Left... 10900-13600 

 Mean 



4765 



12950 



Ratio 



27 



Exp. 2. The hands were washed with soap and water, 

 and then dried on a towel. Contact made as before. 



o^ Ohms, j Direction of Flow. Ohms. 



3970 I Left to Right... 12800 



15 



300 



546c 



Mean ... 3715 



Right to Left... 11500-12800 

 Mean ... 12150 



3-3 



Exp. 3. Hands wet with tap-water. 



«>^ Ohms. 

 2050 



15 

 300 



Mean ... 1995 



1940 



Direction of Flow. 



Left to Right... 

 Right to Left... 

 Mean 



Ohms. 

 6310 



5940 

 6125 



D.C. 



3'i 



Exp. 4. Hands wet with Salt Solution. 



D.C. 

 A.C. 



4'4 



Exp. 5. Hands immersed in Salt Solution to wrists. 



D.C. Ratio 



Mean 1 100 ohms. 



Mean = 1775 ohms. 



A.C. 



1-6 



