Document bxmbJbXNRgzDa8mOvyO84pBk

M Confidential Mellon Institute of Industrial Research University or Pittsburgh PROGRESS REPORT for the__ mssZ . ended___Septemhe m;?=T?TAr. HYGTELM.F1CHDA1IQN___ Industrial Fellowship No. 253-a Subjects under which report is to be indexed 3 copies made: 1 - Mellon Institute 2 - Industrie 1 Hygiene file A preliminary report on the Koppers animal exposure study has been prepared. The first phase of the work has progressed to a point where it is necessary to determine the wishes of the donor concerning further experimental work. 9 The St. Joseph Lead Company atmospheric survey has been continued. . A short survey has been made at the Creighton plant of the Pittsburgh Plate Glass Company. The abstracting of the literature for the September issue of the Industrial Hygiene Digest has been continued. P.j September 14, 1942 T: September 14, 1342 (R 14-q Francis R. Holden Industrial Fellow a* MELLON INSTITUTE