Document m6mYQZX1n6g37MvjxdjM1XY4

Confidential IMellon Institute of Industrial Rksearch UNIVERSITY OF PITTSBURGH PLAINTIFF'S EXHIBIT PROGRESS REPORT for the week ended May 21, 19^-8 rkte INDUSTRIAL HYGIENE FOUNDATION Subjects under) which report is? to be indexed) Industrial Fellowship No. 259-lL 3 copies made: 1 - Mellon Institute. 2 - Industrial Hygiene files Three dust samples from Ovens-Illinois Glass Company vere size-separated into less than and greater than; 5 micron fractions and weight obtained.on each fraction. : -''Ir-'i . Six dust san^les from Sharon Steel corporation were size-separated xrto less than and greater than 5 micron fractions and, weights obtained op. two "the samples;-.:- - v: ; A detailed drawing was made of the eight millimeter spiral and brass connector for use with the electrostatic .precipitator.- - - y-m y'm B: 6/1/1*8 T: 6/1/bQ B: Ge< Junior Fellow r\ r' r' O f r*