Illustrations of acoustic surgery / By Thomas Buchanan.

  • Buchanan, Thomas, 1782-1853.
Date:
1825
Catalogue details

Licence: Public Domain Mark

Credit: Illustrations of acoustic surgery / By Thomas Buchanan. Source: Wellcome Collection.

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    length, and two lines in diameter; to be made of a thin plate of silver, beaten from, but con- nected with the body of the probe; to be hol- low, and of an octagonal shape, and to have two oblong apertures of one line in length and a quarter of a line’ in breadth, the one situated about an inch from the end, and the other about half an inch from the body of the probe. From the one.aperture to the other, the han- dle ought to be rough and crossed, so as to resemble the end of a common sound. The aurist ought to have two instruments of the above description, the one straight, as delineated in plate ILI, figure Ist, and the other curved similar to that of figure 2nd, of the same. plate. Before attempting to sound the membrana tympani, the meatus of the ear affected ought always to be first washed out with tepid water, by means.of a syringe, and. afterwards inspected. —