. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 244 EXPEEIMENTAL PHONETICS. very much alike. It was also observed that if one of the tambours did not act sa}' the one recording the vibrations of the hirynx, it was diffi- cult to distini^uish the tracino-s of certain consonantal sounds. Thus p resembled J, so far as the movements of the lips and the nasal pressures were concerned, but with 1) there is a vibration of the larynx as well, while this is absent in the trac- ing of ^>. In fi
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 244 EXPEEIMENTAL PHONETICS. very much alike. It was also observed that if one of the tambours did not act sa}' the one recording the vibrations of the hirynx, it was diffi- cult to distini^uish the tracino-s of certain consonantal sounds. Thus p resembled J, so far as the movements of the lips and the nasal pressures were concerned, but with 1) there is a vibration of the larynx as well, while this is absent in the trac- ing of ^>. In fig. 2 is shown a table in which is depicted the traces ob- tained on uttering the vowel a either })efore or after various consonants. In these tracings, p n indicates nasal pressure, V / vibrations of the lar- ynx, and M I movements of the mouth. Five ex- amples are given of com- binations of A with con- sonants. If there is no emission of air from the nostrils, the line p n is unbroken and horizontal, but if there is emission, then an elevation is seen as in A 3 with a m^ or VI a. A sinuous line in V I shows that the larynx vibrates, })ut if there is no laryngeal vibration the line is straight. It will be observed that in some cases the larynx vibrates throughout all the experiment, as in A 2, while in others there is an interruption, as in B 1. The movements of the lips in m I show a curve which vai'ies in amplitude and duration according as the lips are more or less approximated and according to the duration of complete or partial Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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