Cassius Alley installs transmitter in a church of his own invention

The system was put in order under the direction of Cassius Alley, manager of the Central Union here, and the scheme is an invention of his own, which has never been installed at any other point. The working of the system is simple, an independent line being run to the church and then a row of holes on the switchboard at the central office being "thrown together" in such a manner that any number of subscribers can be connected. At the church the work is likewise simple. The wire passes along the wall and floor unseen, and goes to the pulpit, where it is connected with the transmitter, which is hidden in the pulpit. The transmitter is small, being only about two inches in diameter, but it is highly sensitized, and very delicate, and the least sound is magnified to such an extent that everything is heard plainly. The preaching, the singing and praying all are clearly distinguishable over the line.