are extinguished when the carbons are burned out, and injury by
burning the holders completely avoided.

The system is based upon the joint inventions of Elihu Thomson and
Edwin J. Houston, for generators, regulators, and electric lamps, and
also the patents of Elihu Thomson, in generators, regulators, and
electric lamps; all of which are now operated and controlled by the
Thomson-Houston Electric Co., 131 Devonshire Street, Boston, Mass.

* * * * *





A MODIFICATION OF THE VIBRATING BELL.


One of the causes which gives rise to induction in the telephone lines
running along the Belgian railroads is that there are so many electric
bells in the stations.

Mr. Lippens proposes as a remedy for the trouble a slight modification
of the vibrating bell of his invention so as to exclude from the line
the extra currents from the bell.

In one of the styles (Fig. 1) a spring, R, is attached at T to a fixed
metallic rod, and presses against the rod, T¹. The current enters
through the terminal, B, traverses the bobbins, passes through T,
through the spring, through T¹, and makes its exit through the other