The spirometer, the stethoscope, & scale-balance : their use in discriminating diseases of the chest, and their value in life offices; with remarks on the selection of lives for life assurance companies / by John Hutchinson.

Date:
1852
Catalogue details

Licence: Public Domain Mark

Credit: The spirometer, the stethoscope, & scale-balance : their use in discriminating diseases of the chest, and their value in life offices; with remarks on the selection of lives for life assurance companies / by John Hutchinson. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    volume in cubic inches (of breath, or any gas) discharged into the receiver, the coloured spirit in the bent tube, must be belatively LEVEi, IN EACH LEG, (which is donc, by gently depressing the receiver c,) before we can correctly read the vital capacity, or volume of gas measm-ed by the Spirometer. 39. Dial-face Spirometer.—This is also of japanned zinc, or Fi^. 5.
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