Document 3JJz9DgGVGMVzVb639nV7dVvy

Mellon Institute of Industrial Research UNIVERSITY OF PITTSBURGH Re PROGRESS REPORT for the week ended May 15, 1944 I USTRIAL HIGIEIIZ FOUNDATION Subjects under which report is to be indexed Industrial Fellowship No. 259-10 3 copies made: 1 - Mellon institute 2 - Industrial hygiene file Dnst counts on samples obtained fn the Pittsburgh Plate Glass Company's Crystal City sand mine were made on May 7 and 8. The meeting of the American Industrial hygiene Association was attended on May 9 and 10 and 11 in St. ^ouis, Missouri* F: Kay 22, 1944 T: May 23, 1944 F: iSSSSB. HoldsT^Industrial Fellow FORM 29 COM t>49 001077