I've been working on updating the Vorwald Collection, a 250+ box set of documents, studies, and patient files related to asbestosis and silicosis. Arthur Vorwald was a doctor who devoted his career, first at the Saranac Laboratories in New York, and then at Wayne State University (my alma mater, but a little before my time) in Detroit, to showing the cause of these diseases. I recently came across a couple dozen photographs that show working conditions in quarries and factories, both with and without dust control mechanisms in place. They will eventually go up on Flickr, but here's one in advance. Is it any wonder these guys were dying?
Leyner Bar Operator Working Without Dust Control