Jenkins and C.-\rlson, Conducting Substance. 89 



TABLE I. 

 Detail of experiment No. 8, Table IV. June 20, 1902. Temp. i8°C. 



Average rate, relaxed : 38.9 cm. 

 " " stretched: 34.5 cm. 



TABLE IL 



Detail of experiment No. 13, Table IV. June 23, 1902. Temp. 2i°C. 



Average rate, relaxed: 24.9 cm. 

 " " stretched: 29.4 cm. 



TABLE in. 



Detail of experiment No. 16, Table IV. June 24, 1902. Temp. 2o°C. 



Average rate, relaxed : 25.4 cm. 

 " " stretched: 24.4 cm. 



