4 6 



THE POPULAR SCIENCE MONTHLY. 



it is within the range of possibility that we may in this way reach 

 the solution of the problem of the artificial production of dia- 

 monds. 



Another and very different use of the heating power of the 

 electric current is its application to cooking and house heating. 

 Attempts have been made for some years now to adapt the cur- 

 rent to these purposes, and what has been accomplished in this 



FIG. 10. AN ELECTRIC KITCHEN. 



direction is to be seen at the exposition. After considerable ex- 

 perimenting the final form which has been given to the appa- 

 ratus for such use as hot plates, broilers, and water heaters is 

 that of a wire imbedded in enamel such as is at present used 

 upon kitchen utensils. The wire most commonly employed is 

 German silver, though in some cases platinum has been used. In 

 applying this construction to a flatiron, for instance, the base of 



