Gases. Investigation of toxic gases from Mexican and other high-sulphur petroleums and products, report by Bureau of Mines to American Petroleum Institute; [articles] by R. R. Sayers, N. A. C. Smith, A, C. Fieldner, C. W. Mitchell, G. W. Jones, W. P. Yant, D. D. Stark, S. H. Katz, J. J. Bloomfleld, and W. A. Jacobs.

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