Observations on impediments of speech : with some remarks on their successful treatment : in a letter addressed to T. J. Pettigrew / by Richard Cull.

  • Cull, Richard.
Date:
1833
Catalogue details

Licence: Public Domain Mark

Credit: Observations on impediments of speech : with some remarks on their successful treatment : in a letter addressed to T. J. Pettigrew / by Richard Cull. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    responding to the thesis of the Greeks; and to call what is usually denominated unaccented syllables, light poise, correspond- ing to the arsis of the Greeks : the terms pidsatioii' and remhsion have been sug- gested. The voice is capable of producing low or hio'h notes in the musical scale — which is effected, according to Dodart, by the change of the diameter of the glottis, the aperture being large for grave notes, and small for acute ones ; while Ferrein considers the pitch to depend upon the tension of the ligaments which form the sides of the glottis — that, if these be very tight, acute notes are pro- duced, which are rendered grave according to their degree of relaxation. Now, admitting Richerand's hypothesis to be correct, it will depend on the conjoined actions of change of diameter of the glottis, and the tension of its sides; but, in the production of a different note of the musical scale, we find the whole larynx changes its place in the throat. Thus, for acute sounds it is carried upwards and forwards; to produce ]he most acute sounds, the head is thrown back, which