INORGANIC RESPONSE 



in 



the next series of records. The wire at the low tem- 

 perature of 5 C. happened to be in a sluggish condition, 

 and the responses to vibrations of 45 to 90 in amplitude 

 were feeble. Tepid water at 30 C. was now substituted 

 for the cold water in the cell, and the responses under- 



5 C 30 C 90 C 



FIG. 65. KESPONSES OF A WIRE TO AMPLITUDES OF VIBRATION 45 AND 90 



(a) Responses when the wire was in a sluggish condition at temperature of 5 C. 

 (6) Enhanced response at 30 C. 

 (c) Diminution of response at 90 C. 



went a remarkable enhancement. But the excessive 

 molecular disturbance caused by the high temperature of 

 90 C. produced a great diminution of response (fig. 65). 

 Diphasic variation. It has already been said that if 

 two points A and B are in the same physico-chemical 

 condition, then a given stimulus will give rise to similar 

 excitatory electric effects at the two points. It the 



