- Pronovost , W. 1939 . “An Experimental Study of the Habitual and Natural Pitch Levels of Superior Speakers” . State University of Iowa . Ph. D. Dissertation
- McIntosh , C. W. Jr. 1939 . “A Study of the Relationship Between Pitch Level and Pitch Variability in the Voices of Superior Speakers” . State University of Iowa . Ph.D. Dissertation
- Metfessel , M. 1927 . “Techniques for the Objective Study of Vocal Art” . Psychol. Monog , XXXVI : 1 – 40 .
- Simon , C. T. 1927 . “The Variability of Consecutive Wave Lengths in Vocal and Instrumental Sounds” . Psychol. Monog , XXXVI : 41 – 83 .
- Lewis , D. and Tiffin , J. 1934 . “A Psychophysical Study of Individual Differences in Speaking Ability” . Ar. Sp , I : 13 – 60 .
- Cowan , M. 1936 . “Pitch and Intensity Characteristics of Stage Speech” . Ar. Sp. , I ( Suppl. )
- Fairbanks , G. 1940 . “Recent Experimental Investigations of Vocal Pitch in Speech” . J.A.S.A , XI : 457 – 466 .
- Fletcher , Harvey . 1934 . “Loudness, Pitch and Timbre of Musical Tones” . J.AS.A , VI : 59 – 69 .
- Murray , E. and Tiffin , J. 1934 . “An Analysis of Some Basic Aspects of Effective Speech” . Ar. Sp , I : 41 – 83 .
- Lynch , G. E. 1934 . “A Phonophotographic Study of Trained and Untrained Voices Reading Factual and Emotional Material” . Ar. Sp , I : 13 – 60 .
- Darley , F. L. 1940 . “A Normative Study of Oral Reading Rate” . State University of Iowa . M.A. Thesis
- A portion of a dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Speech, in the Graduate College of the State University of Iowa, August, 1940. It is a part of a research program in Experimental Phonetics being carried out under the direction of Professor Grant Fairbanks.
Speech Monographs
Volume 10, 1943 - Issue 1