Light and work; a discussion of quality and quantity of light in relation to effective vision and efficient work, by M. Luckiesh ... 70 illustrations. Luckiesh, Matthew, 1883- Lighting. TH7703 .L7 19 535 LUL "References": p. 290-292. New York, D. Van Nostrand Company, 1924. 1924. 1924 Text xvi, 296 p. eng