Document QMmzwoVkQo0dZMqxdyBdZZEkR

Mellon Institute of Industrial Research PLAINTIFF'S EXHIBIT 3 UNIVERSITY OF PITTSBURGH PROGRESS REPORT for the week ended June 6, 1947 INDUSTRIAL SIGISNE FOUNDATION Subjects under which report is to be indexed Industrial Fellowship No. 259-1? ? copies made: 1 - Mellon Institute 2 - Industrial Hygiene files Samples of Commercial and Underwriters Grade Rovings from Asbestos Companies wer'e obtained to ascertain whether different rovings varied in dusti ness. In "asbestos index" was obtained by dispensing a known weight of asbestos roving in alcohol and then counting by the usual dust counting procedure. The Tennessee Copper spiral counts were completed. , The size separation samples for Indemnity Insurance Co. were continued. R: 6/16/47 T: 6/17/47 13 *>.*s nnnur