The Problem of Dust Phthisis in the Granite-stone Industry

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U.S. Government Printing Office, 1922 - Dust - 178 pages
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Page 24 - William stown, in Orange County , which adjoins Barre on th'e south. The city of Barre lies on Stephens Brook, a tributary of the Winooski, which empties into Lake Champlain. About half a mile south-southeast of Barre City this brook receives a tributary from the southeast known as Jail River. Some...
Page 166 - On the nature of the doubly refracting particles seen in microscopic sections of silicotic lungs and an improved method for disclosing siliceous particles in such sections.
Page 13 - Pathologists tell us of the presence of bacilli in tubercular disease, and favor the belief that these minute bodies are the cause of it. This notion may represent a whole truth or only a partial one; in my opinion, the latter. For I doubt if these bacilli actually develop phthisis unless there be some antecedent change in the vitality of the affected tissue; a change wrought by depressing causes connected with the mode of life, or with constitutional debility and inherited taint, or with the occupation...
Page 103 - Annual Report of the Registrar General of Births, Deaths, and Marriages in England and Wales (1910).
Page 64 - The histories of 229 consecutive widowed patients admitted to the Rhode Island State Sanatorium, 1905-1921, showed that 93, or 40 per cent, lost their consorts by death from tuberculosis, the tuberculosis mortality being over three times that of the married people of the community.
Page 144 - The hardness of a mineral is measured by the resistance which a smooth surface offers to abrasion. The degree of hardness is determined by observing the comparative ease or difficulty with which one mineral is scratched by another, or by the finger nail, or by the knife or file.
Page 12 - ... and slate splitters, and in the sawing, grinding, polishing and lathe work which can be conducted by the wet process, than in the case of monument or custom work, and particularly in the surfacing, carving and cutting with pneumatic tools. The greatest amount of dust is evolved by the surfacing machines which are operated with compressed air.
Page 14 - In cases of potters' consumption from initialed dust, occurring under my own observation, bacilli have been sought in vain, excepting where hemoptysis, hectic, and other indications that tubercular mischief has been at work, as accessory or collateral. For experience proves that the dust-produced lung disease may coexist with tubercular phthisis, and, further, that where labor is prosecuted in a dusty atmosphere tubercular mischief in those constitutionally predisposed to it is more likely to arise....
Page 12 - ... pasty material created by a mixture of water and dust clogs up the tools. The work is usually done in large open sheds or in the yards, but even under such conditions the men are exposed to clouds of dust. The sawing of granite and marble into slabs, turning in lathes, and the final polishing can be conducted by the wet process; soapstone sawing and cutting for joints is frequently done drv and is attended with exposure to considerable dust. IMPORTANCE OF OCCUPATIONAL SEGREGATION. The foregoing...

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