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Confidential Mellon Institute of Industrial Researc UNIVERSITY" OF PITTSBURGH PLAINTIFF'S EXHIBIT IHF-376 PROGRESS REPORT for the week ended February 9, 1946 INDUSTRIAL HYGIENE FOUNDATION Subjects under which report is to be indexed Industrial Fellowship No. 259-12 3 copies made: 1 - Mellon Institute 2 - Industrial Hygiene files Feb. 4,5 and 6 - One and a half days were devoted to preparetion of detailed methods of analysis for lead, nitrous oxides, chromic acid mist, sulfur dioxide and fluorides. These methods were requested by Youngstown Sheet and Tube Co. ; A total of one day was spent compiling tables of results for the North American Refractories Co. reports. Miscellaneous office and laboratory duties were performed. Feb. 7,8 and 9 - One and a half days were devoted to the St.Joseph . Lead Co. sulfur dioxide study. One round of all stations was made on Feb. 7. Discussed our methods of appraisal with Mr. Petnick and Mr. Cullimone of the Metropolitan Life Insurance Co. * Miscellaneous office and laboratory duties were performed. R: 2/11/46 T: 2/13/46 R: Eawin C. Hyatt Industrial Fellow nnnFP p