Glass, and Metal Wires subjected to Constant Putt. 515 



If x is measured in scale-divisions and t in minutes, then 

 for this cast* 



6=1-006 and a = 46- 2. 



Curve No. I. 



46-5 



HO J o -5 l 1-5 2 2-5 



lOS.t. (& /S THC T/M£ //V M/NUr£S S/A/CS T//S LOAO OF £00 Gff/IMS WAS PUT Oty 



The constancy of \ • is exhibited in the following table. 







x -46-2 



X. 



log if. 



logt 



46-68 



•47 



1-02 



4678 



•58 



100 



46-88 



•67 



102 



46-98 



•78 



1-00 



47-08 



•88 



1-00 



47-18 



•97 



101 



47-28 



107 



101 



47-4 



119 



101 



47-49 



1-31 



•98 



4761 



1-44 



•98 



48 31 



2-18 



•97 



If x is measured as stretch per unit length 

 b = '0073 and a = '3235. 



On removing the load from the indiarubber it returned 

 gradually back to its original length according to the law 



x — a 4- b log t — (a + b log Q 



*=Mog(L) 



i.e. 



