Schereschewsky, Joseph Williams, 1873-, Tuck, Davis Henry, 1886-1953, United States. Public Health Service. Public health bulletin no. 71 · Washington, Govt. print. off. · leaf 232
Fig. 35.—Distribution curve ot reflector H-9673 and SO-watt gem lamp. 213 … Fig. 36.—Distribution curve of reflector H-9673 and 100-watt tungsten lamp. 214
Occupational diseases · Factories · Textile industry · Industries
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
