268 Correspondence of J. Nickles. 
ppears to show that 
the very refrangible and in part invisible rays which constitute in large 
a 
with two needles moved by electricity, which mark the hours and minutes. 
The whole mechanism consists of three wheels, a pinion, an escapement, 
and a double rachet, with a means of reversing the current: two wires 
pass from the lamp to a regulating clock situated in the apartment of M. 
Bréguet. This inventor proposes to divide Paris into 12 electric districts, 
and place in each mayoralty a regulator which shall distribute ime 
throughout the district both to the public lamps and _ private houses. 
Gas and Steam. Manometer Alarm.—The same artist has made another 
application of electricity, He has constructed an apparatus for informmng 
the engi i 
these metallic points is made to close a circuit proceeding from a a: 
battery, and this puts the bell in play. 
On a Cause of Atmospheric Electrieity—There exists between the liv a 
ing plant and the soil supporting it an electric current, which always 
moves in the same direction, that is, the soil is constantly positive, the 
lant continually negative. This fact, was first observed by Beequerel, a 
r, and for several years it has been pointed out by him as one of al 
