eiver and recorder could wire, w, and the coherer itself forms part of a circuit time of observation should also be recorded. The date containing the local cell, ,g, and a sensitive telegraph be devised, these electro magnetic waves would lend should be the astronomical day, beginning at noon,… … occur whenever the key of the transmitter at the sky will be formed, in which the stars will appear distant station is depressed. Mr. Marconi has de- as points. A rapid-rectilinear lens is to be pre- ferred in the first case, a wide-angle lens in the vised an ingenious arrangement, in which a small…
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