Golden rules of aural and nasal practice / by Philip R.W. de Santi.

  • Santi, Philip R. W. de (Philip Robert William de)
Date:
[between 1900 and 1909?]
Catalogue details

Licence: In copyright

Credit: Golden rules of aural and nasal practice / by Philip R.W. de Santi. Source: Wellcome Collection.

    17/96 (page 13)
    Remember that a considerable amount of hearing power may be lost without any corresponding appreciation of the fact. 1. —Simple tones. The Watch. N ote first of all the distance at which the tick is heard by a normal ear : say it is 36 inches. Now instruct your patient to close the opposite ear and shut his eyes ; now gradually approach the watch until the tick is heard ; then note the distance. Supposing it to be Q 8 inches, express it as: Watch R — 36 If not heard when pressed on 0 the ear ~36 P If heard on pressure - - 36 P If heard on slight contact - . 36 2. —Speech. Test the patient in a similar way, with whispering voice, ordinary conversa- tional and loud voice. (6) By Bone Conduction:— Use for this purpose a tuning fork, pitch C, vibrations 512 per second.