A review of our present knowledge of pneumoconiosis, based upon roentgenologic studies, with notes on the pathology of the condition (1925)

This 1925 article reviewed what was then known about pneumoconiosis, lung disease from inhaled dust, mainly from chest X-ray studies, with notes on its pathology. The authors also recorded X-ray findings from their own cases in many dusty trades, grouped into first, second and third stages. Among their own cases were 17 asbestos workers, examined with Miller and Landis: 2 showed first stage changes and 15 showed definite second stage appearances. In these asbestos workers the nodular shadows were described as "soft" and varying in size. Very slight nodular shadows appeared in one man after two years' work. The authors described asbestos as a magnesium silicate whose crushed rock contains free silica. They wrote that the actual danger in asbestos and cement works seemed comparatively slight. They regarded a fatal asbestos case reported by Cook as largely tuberculous. Their own cases also included 58 potters and 20 cement workers. The authors considered that serious damage was probably due to silica, and they urged wider X-ray study of dusty industries. They noted that their coal miner figures covered only positive cases.

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From J-M's medical library

This copy comes from the Johns-Manville medical library. J-M listed it in its medical library index as no. 003124. Barry Castleman cites it in chapter 1, "The Development of Knowledge About Asbestosis", of Asbestos: Medical and Legal Aspects (5th ed., 2005); see Reading Castleman.