Research on Guidance Devices for the Blind; a Progress Report of Work Done at the Haskins Laboratories, New York City, Between February 15, 1944 and December 1, 1946, Under the Auspices of the Committee on Sensory Devices, the National Academy of Sciences. Prepared by the Staff of the Haskins Laboratories and Approved for Submission to the Committee on Sensory Devices by F. S. Cooper [and] Paul…

Haskins Laboratories.