Light, Heat, and Power. 89 



busy way, turning" earth into a magnet, vivi- 

 fying and operating all organisms, travelling 

 upon all currents, gathering up and utilizing 

 all the fragments and waste of its workshop, 

 transmitting and conserving its energy en 

 route to the poles. And finally, the same 

 element that signalized its entrance at the 

 earth? s more central regions AS HEAT, now 

 signalizes its departitre along earth s polar 

 extremities AS COLD.* 



Nothing is lost. Such a mighty flowing 

 current cannot be stopped. If it rolls in we 

 may be assured that somewhere it will roll out. 

 And this is but THE GRAND COSMICAL CIR- 

 CUIT, already made mention of. 



* We would not define cold as "absence of heat." Cold is 

 rather the opposite electrical condition to heat. 



