412 JOUKNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



reports of more recent experiments made at the Cornell Experimental 

 Station is given as follows : — 



" The stimulus of the electric arc light promotes assimilation and 

 hastens growth and maturity. The electric arc might be employed with 

 profit in certain branches of the forcing industry." 



Fig. 66. — Scheme for UtilisingTEnergy. (See'text. 



Many years' study of the problem of securing a supply of electric 

 stimuli that would, by giving comparative independence of the sun's 

 rays, permit us to extend the period of cultivation through the winter 

 months if needs be, at a cost of electric energy that would, in all 

 probability, make such cultivation a remunerative operation, has evolved 

 the Thwaite system of May 1905 (fig. 66). 



