Neurobehavioral & Cognitive Disorders
Disorders of consciousness
Dec. 16, 2023
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Woman fettling (finishing, polishing) dry, unfired clay tile
Note the down-draft exhaust ventilation for tile fettling by hand in a West Virginia pottery factory. Fettled (ie, finished, polished) ware is placed in saggers (ie, protective fireclay boxes enclosing ceramic ware while it is being fired) at right. (Source: CDC/Barbara Jenkins, NIOSH, 1936. Flinn RH. Neal PA, Reinhart WH, Dallavalle JM. Fulton WB, Dooley AE. Chronic manganese poisoning in an ore-crushing mill. Public Health Bulletin 1940;247:1-77. Public Health Image Library, Centers for Disease Control and Prevention, Atlanta, Georgia. Public domain.)