Schereschewsky, Joseph Williams, 1873-, Tuck, Davis Henry, 1886-1953, United States. Public Health Service. Public health bulletin no. 71 · Washington, Govt. print. off. · leaf 241
Fiff 2 —Glare effects from projecting filaments and low suspension in a shop with poor daylight illumination. Public Health Bulletin 71. … Fig. 3.—Fishtail burners used in the illumination ofmachines. The flickering of the flame and the glarefrom its proximity to the eye make this form of arti-ficial illumination very undesirable. AVUX ti kimaiiiim mmimt^^^ •?• ^ ■ 1 ■ 1 ^^m.A . ■ ItSt fllHMB VBI^H HI^H 1 t\^ |\ ^ 1 \ \ ^ |j|_l <!,…
Occupational diseases · Factories · Textile industry · Industries
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