Document Z4xdVJy7VZr1N43746274edkp

Mellon Institute of Industrial Research > UNIVERSITY OF PITTSBURGH PROGRESS REPORT for the Keek eroded May 6 INDUSTRIAL HYGIENE FOUNDATION Subjects under which report is to be indexed Industrial Fellowship 3 copies made: 1 - Mellon Institute 2 - Industrial hygiene file The entire week was spent in conference and in studying conditions in the sand mine of the Pittsburgh Plate Glass Company at Crystal City, Missouri; R: May 22, 1944 T: May 23, 1944 R: Francis R. Holden Industrial Fellow . ., * FORM 23 60M 6-43 001079