Schereschewsky, Joseph Williams, 1873-, Tuck, Davis Henry, 1886-1953, United States. Public Health Service. Public health bulletin no. 71 · Washington, Govt. print. off. · leaf 230
Fig. 33.—Distribution curve ot reflector D-16 and 100-watt tungsten lamp. 211 … Fig. 34.—Distribution curve of reflector D-16 and 250-watt tungsten lamp. 212
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