A manual of diseases of the throat and nose / by Francke Huntington Bosworth.

  • Bosworth, F. H. (Francke Huntington), 1843-1925.
Date:
1881
Catalogue details

Licence: Public Domain Mark

Credit: A manual of diseases of the throat and nose / by Francke Huntington Bosworth. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    mirror, and with the left eye beyond its rim. (See Fig. 10.) It is oftentimes difficult for the beginner to get accustomed to arranging his head-mirror properly ; but a little practice will enable him to overcome this first awkwardness. The opening should be placed immediately in front of the eye, in such a way that the patient's mouth can be seen without effort through the perforation in the mirror ; then, without disturb- ing this position, the mirror can be turned until the light is concentrated in the proper direction. In using the forehead-mirror the head of the observer must be held in a hxed and steady position, of course, while making an examination. The same is also true of the patient. The Fig. 10.—Examination with the head-mirror by the use of an ordinary gas-jet. disposition of the patient to move about and thus escape from the line of illumination, may be controlled by this simple device : while the tongue is held between the thumb and fore- finger of the left hand, pass the. other fingers under the chin and press upward against the bone, while at the same time the forefinger rests upon the lip or gum. In this manner the jaw may be held with considerable steadiness and the head of the patient prevented from moving out of the line of vision. It is well for the beginner in laryngoscopy to practise some-