NEW ELECTEIC LIGHT IN WESTMINSTEK CLOCK TOWEE. 275 
was thrown upon the dome of the National Grallery. At the 
Duke of York’s Steps, a very striking effect was produced by the 
sharp, well-defined shadows of trees and their foliage cast on 
the pedestal of the shaft and column. As we made no photo- 
metrical observations of the relative intensities of the gaslight 
and the electrical beam, we can merely record our impres- 
sion, which to many may seem a rhetorical superfiuity, that 
the latter was greatly superior to its fair rival in point of 
brilliancy. The one was dazzling and penetrating ; the other, 
soft and comparatively feeble. 
From the preceding pages, it must strike every one that 
the Grramme machine is unquestionably among the greatest 
inventions of our age. It would be premature to speculate as 
to what it may yet achieve, but the experiments detailed in 
this paper encourage the expectation of still greater results 
when its intrinsic merits becoming generally known and appre- 
ciated, will have secured it its fitting place in the practical 
applications of electricity. 
