T. C. JL ndenhall^-Edis 



The following table exhibits 

 distance 



Curve showing the relation between Resistance and Time. 

 being called 100. The resistance before the addition of the 

 pressure of 50 grams was 11*67 ohms, which immediately fell 

 to 3-52 ohms upon the application of the weight. 



Tiim: in Minutes. Resistance. Time in Minutes. Resistance. 



a little more tha 

 • cent in three mi. 

 half hours, and 



