Observations on the Active Deposit of Radium in Mid-ocean

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IN the month of May, 1908, by the kindness of the captain and officers of the ss. Lake Erie, observations were made between Montreal and Liverpool on the radio-active matter collected on a negatively charged wire exposed to the air for three or four hours. The wire was insulated by ebonite rods, suspended from the flag halyards, and charged by a Zamboni dry pile. After exposure it was coiled on a skeleton reel and placed in an electroscope clamped to a board, together with the observing microscope. There was no difficulty in obtaining satisfactory readings, in spite of the slight motion of the ship.

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EVE, A. Observations on the Active Deposit of Radium in Mid-ocean. Nature 78, 604 (1908) doi:10.1038/078604c0

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