title: HEALTH HAZARDS OF NON-POISONOUS DUSTS-A RESUME OF SOME RECENT INVESTIGATIONS.
abstract: Five million workers are subject to industrial dust hazards in this country. The risk to them may be decreased if what is becoming known is utilized. A scientific basis for estimating maximum amounts permissible is near at hand, while the body defenses are becoming better understood.
authors.forename: E R
authors.initials: ER
authors.lastname: Hayhurst