Document DGNmEz9wyE44peJDwydaOOXkn

% Mellon Institute of Industrial Research UNIVERSITY OF PITTSBURGH PLAINTIFF'S EXHIBIT PROGRESS REPORT for the week ended January 11, 1947 INDUSTRIAL HYGIENE FOUNDATION Subjects under which report is to be indexed Industrial Fellowship No. 259-15 5 copies made: 1 - Mellon Institute 2 - Industrial Hygiene file Some repairs were made on laboratory apparatus. An investigation was made on mercury concentrations in the air of Room 822 for the Petroleum Refining Fellowship. Concentrations of dust end lead fume were measured in' the Pittsburgh Plant of Allis Chalmers Manufacturlhg'Co. Consultations were held with representatives of the Allis Chalmers Manufacturing Co. and the Owens Coming Fiberglas Co. R: January 15,1947 * T: January 15, 1947 R: _______________ Francis R. Bolden Senior Fellow 23 eew s-o 0004C5