Journal of the Society of Motion Picture Engineers (1930-1949)

Page scan 000179 from Journal of the Society of Motion Picture Engineers

Record Details:

Title:
Journal of the Society of Motion Picture Engineers
Date:
1930-1949
Publisher:
New York, N.Y. : The Society
Volume:
Journal of the Society of Motion Picture Engineers
Leaf #:
000179
Language:
English
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
The Journal of the Society of Motion Picture Engineers (SMPE)Êdocuments the technological progress of the film industry, highlighting technical developments in production and exhibition. Of special interest are articles about special effects, theater practices, lighting, and the introduction of the 16mm format. Initially titled "Transactions of the Journal of the Society of Motion Picture Engineers."Digitized by the Prelinger Library and the Library of Congress Motion Picture, Broadcasting and Recorded Sound Division.
Date Added:
July 19, 2022
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172 G. O. RUSSBUJ, AND C. [J. S. M. p. E. The Problem. — The vocal cords and the surrounding anatomical region which is of particular interest in the study of speech mechanism occupy a circular area about 5.5 cm. in diameter in the mid-portion of the larynx. A and B of Fig. 1 are drawings after laryngoperiscopic photographs of the cavity of the larynx.3 The dotted circles inscribe the area to be photographed. A shows the full length of the cords (about 20 mm.). These are a pearly white in color while the surrounding areas vary from a cream pink to deeper shades L-TJ-B FIG. 2. Cross-section view showing extreme positions of the vocal cords. of red. The false cords, which are a darker red than the true cords, lie approximately parallel to the latter. B shows the same area as it is covered with the epiglottis — a smooth, yellowish pink membranous material slightly concave forward and upward. Physiologically, the epiglottis was formerly thought to be a kind of trap door or lid which closed down tightly over the larynx during the act of swallowing. The present experiments show that in this subject the actual laryngeal closure is first created by an approximation between the