EFFECT OF TEMPERATURE ON ELECTRICAL RESPONSE IQI 



the influence of high temperature. In the next chapter we 

 shall enter upon an exact determination of this critical point 

 of death. 



It is thus seen that temperature modifies the electrical 

 response of plants. There is a temperature-minimum below 

 which response is abolished. If the plant be kept too long 

 at this temperature it is apt to be killed. In the case of a 

 delicate species like Eucharis, which is highly susceptible of 

 the injurious effect of cold, the electrical response is per- 

 manently abolished by long exposure. But hardier plants, 

 like Holly and Ivy, show revival of electrical response, on a 

 return to a favourable temperature. The electrical response 

 disappears also at a certain maximum temperature con- 

 stituting the death-point. 



