1S80.] on Aiiplications of the Dynamo-Electric Current. 339 



nearly equal to daylight in its beneficial effects upon tlicm ; that the 

 phants did not require a time of rest by night, but became all the 

 more vigorous if jiut under the influence of day and electric light 

 alternately witliout intermission, and that the dcvelo^uncnt of flowers 

 and the ripening of fruit would be greatly accelerated and improved 

 through the action of electric light. Various plants, including 

 mustard, carrots, peas, roses, lilies, and strawberries with the fruit 

 partially developed were exhibited, a portion of which had been 

 exposed to daylight only, another to electric light only, being kept in 

 the dark during the daytime, and a third portion to day and electric 

 light, which clearly justified the conclusions already stated. 



The cost of electric light in this application, if steam had to be 

 used for its j^roduction, would no doubt be considerable, but not too 

 great probably to prevent its being employed for forcing early 

 vegetables and fruits ; but its cost would be quite inconsiderable in 

 situations where water power could be made available. 



Other applications of the dynamo-electric current for electro- 

 decomposition, photography, and telegraphy, could only be alluded 

 to by the lecturer, but enough had been said, he thought, to show the 

 extraordinary uses to which Faraday's great discovery made fifty 

 years ago was likely to lead. 



[C. W. S.] 



2 A 2 



