The Observatory of the Bureau of Longitudes of Paris, says the "Electrical Review," is adopting a new method of time distribution by telephone. It is intended to be used in regulating chronometers and clocks throughout the city, in watchmaking and scientific establishments, and no doubt it will be of considerable value. At the Observatory a standard clock has a michrophone placed inside of the case, which receives the shock caused by the clockwork. The microphone is connected to the city telephone circuit, and thus a subscriber can receive the time regulation in order to adjust his chronometers or clocks. This can easily be done by counting the beats, and the exact time corresponding to the first beat is given by the voice through the telephone. It will be noted that the microphone is operated simply by the mechanical shock, and there is no direct electrical connection attached to the clock. Even.the slightest electric contact made by the clock might have an effect upon its movement and thus put it out of order, especially in the case of a standard clock which has to be regulated within one one-thousandth of a second. With the use of the microphone, no such errors could be introduced. The method could also be used for astronomical work between two observatories, which by noting the beat could be made to work together by means of a single clock.