Catalogue of bright stars, containing all important data known in June, 1930, relating to all stars brighter than 6.5 visual magnitude, and to some fainter ones.

At head of title: Yale university observatory.

Detectable warnings: detectability by individuals with visual impairments, and safety and negotiability on slopes for persons with physical impairments. Final report.

Federal Transit Administration, Washington, D.C.

National strategic research plan for hearing and hearing impairment and voice and voice disorders.

Shipping list no.: 93-0323-P.

Visual detection of driving while intoxicated. Project interim report: identification of visual cues and development of detection methods.

National Highway Traffic Safety Administration, Washington, D.C.

The visual detection of driving while intoxicated; field test of visual cues and detection methods. Final report.

National Highway Traffic Safety Administration, Office of Driver and Pedestrian Research, Washington, D.C.

ABC's of visual aids and projectionist's manual.

Mode of access: Internet.

ABC's of visual aids and projectionist's manual.

Mode of access: Internet.

The visual (grating and glass lens) solar spectrum in 1884 /

"From the Transactions of the Royal Society of Edinburgh, vol. XXXII, pt. III."

Perceptual thresholds of non-visual locomotion.

Part II written by Bryant J. Cratty and Harriet G. Williams.