THE BULLET-FINDER
ELECTRO-MAGNET WHICH ' WHISTLES. An electro-magnet which -i ells tl:e position of a bullet by causing a sound "very much like a steamboat whistle" in a stethoscope placed on tho patient's skin is one of the recent developments of war surgery, recording to Surgeon-General Fotheringhani, C.M.G., in an article in the ''Lancet" on the , Canadian Army. Medical Service. .
By means of - tho new magnet tho exact position of any electro-magnetic substance, including the German bullet, can be determined. Whim the bullet is not deeply seated a vibration is set up by the magnet which can readily- .be made out by the band. When too deep for this, the electromagnet is placed on one side of tho patient's body and a stethoscope is moved about the skin opposite. the mfwgnet.' The "steamboat whistle sound" indicates the nearest point to the foreign body, and the sicinvs marked at that point. The development of the locating of ballets by this magnet and similar means sinco the war began would be, according to Surgeon-General Fotl-cr-ingham, perfectly amazing to a civil surgeon. ■
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Dominion, Volume 11, Issue 93, 12 January 1918, Page 7
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178THE BULLET-FINDER Dominion, Volume 11, Issue 93, 12 January 1918, Page 7
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