Background
Ferree, Clarence Errol was born on March 11, 1877 in Sidney, Ohio, United States. Son of Jeremiah Dixon and Arvesta (Lincolnshire) Ferree.
Ferree, Clarence Errol was born on March 11, 1877 in Sidney, Ohio, United States. Son of Jeremiah Dixon and Arvesta (Lincolnshire) Ferree.
Bachelor of Science and Master of Arts, Ohio Wesleyan University, 1900. Master of Science, 1901. Sage fellow in psychology, Cornell Univercity, 1902-1903, Doctor of Philosophy, 1909.
Doctor of Science Ohio Wesleyan University, 1939.
Assistant in psychology, Cornell Univercity, 1903-1905, 1906-1907. Instructor in physics and psychology, University of Arizona, 1905-1906. Lecturer in experimental psychology, 1907-1909, associate, 1909-1912, associate professor, 1912-1917, professor, 1917-1928, director Psychological Laboratory, 1912-1928, Bryn Mawr College.
Director Research Laboratory Physiological Optics, and resident lecturer in ophthalmology, 1928-1932, professor physiological optics and director Research Laboratory Physiological Optics, 1932-1936, Wilmer Ophthalmological Institute, Johns Hopkins Medical School.
Director Research Laboratory Physiological Optics, Baltimore, since 1936.
Fellow of the American Association for the Advancement of Science. Member American Psychological Association, Illuminating Engineering Society, Optical Society America, Franklin Institute, Phi Gamma Delta, Sigma Xi, P.B.K. (honorary). Appointed; member Engineer Reserve Corps Committee, May 1917.
Inventor (with G. Rand) various lighting appliances, apparatus for measuring speed of accommodation and convergence of the eye, apparatus for testing visual acuity and the light and color sense, perimeter, pupilometer, central-vision scotometer and other optical and ophthalmic instruments.
Member committee of 4 on standards of field taking in study of eye diseases, International Congress of Opthalmology, 1922, National Research Council’s Committee on Industrial Lighting, 1924, Inter Society Committee on Color, 1931. Granted several patents on illuminating devices and optical instruments.
Married Gertrude Rand, September 28, 1918.