On the respiratory functions of the nose : and their relation to certain pathological conditions / by Greville MacDonald.

  • Macdonald, Greville, 1856-1944.
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: On the respiratory functions of the nose : and their relation to certain pathological conditions / by Greville MacDonald. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

    19/86
    I. The Degree to which the Tempera- ture OF THE Air is raised by the Nose. The method in which this investigation was conducted is as follows. An ordinary piece of T glass tubing is taken and one arm bent round till the extremity lies beneath the vertical portion (see Fig. i). At the angle of junction a small bulb is then blown ; into the vertical portion is inserted a thermometer graduated from 6o°to ioo°F. (i5°C. to 37°C.), carrying an index, and fixed into the tube with a collar of rubber tubing (A). The bulb of the thermometer must fall well into that of the outer tube, but not so far as to come into contact with it. To the straight and bent arms are then respectively fixed a solid rubber perforated nipple (B), large enough to fit tightly into one nostril, and a piece of tubing (C) of sufficient length to be held between the lips when the instrument is