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Article
January 17, 1885

Editor of the Journal of the American Medical Association.

B.
JAMA. 1885;IV(3):75-76. doi:10.1001/jama.1885.02390780019005
Abstract

My Dear Doctor:  —In the issue of the 3rd instant you give a quotation from the Medical Chronicle, which gives to Haupt (Aerztliches Intelligenzblate) the credit of having shown that the vibrations started by the heart or lungs are not communicated to the ear through the column of air in the tubular stethoscope, but through the solid material of which the instrument is constructed.It will be a matter of interest to your readers to know that an ingenious physician of this city showed the same thing to the Chicago Medical Society about four years ago, but that he soon found that he was mistaken.I was not at the meeting when the discussion took place, but the next day the doctor called at my office and demonstrated to me the interesting fact that a watch placed against the chest piece of a stethoscope could be heard quite as well

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