516 Mr. Phillips on the Slow Stretch in Indiarubber, 



where t is the time which lias elapsed since the load was put 

 on, and t that since the load was removed. The following 

 is an ordinary set of readings : — 



Curve No. II. 



® Log 4- 

 x Log c 



Load. 



Reading 

 on Scale. 



t. 



*o- 



log if. 



log* - 



log L . 



^0 







22-24 

















200 grams 



120 





20 s. 







1-52 







at 3 p.m. 



118 





50 s. 







1-92 









11-7 



1 in. 25 s. 







•15 





. 





11-6 



2 



20 







•37 









115 



4 



15 







•63 









11-4 



7 



5 







•85 









11-3 



14 



30 







116 









11-2 



29 



30 







1-47 









11-08 



58 











1-76 









1102 



80 













1-90 





















grams 



215 



83 



23 





23 s. 



1-92 



1-58 



234 



at 4.23 p.m. 



216 



83 



38 





38 



1-92 



1-80 



212 





21-7 



84 



23 



lm 



23 



1-93 



•14 



1-79 





21-8 



85 



40 



2 



40 



1-93 



•43 



1-50 





21-9 



89 







6 







1-95 



•78 



1-17 ! 





220 



100 







17 







200 



1-23 



•77 





2209 



132 







49 







242 



1-69 



■43 





22-18 



277 







194 







244 



229 



15 





22-26 



1153 







1070 







3-06 



303 



•03 



































































v 

































© v 





































V >>. 







































































°> 



\ 





















itf 



/ 













"^ 



N ( 

















A 





















































^ 



% 











On Curve No. II. these results are exhibited, hoth 

 and log I - J being plotted against the stretch so that 

 may be compared. 



log t 

 they 



