578 CHAPTER 27 ,7 ,-,1949 'Gulde -i 4 ASMEaPower Boiler Code,AmericanSocietyofMechanical Engineers. . . . . ; , 4 American.Standard Code for Pressure Piping, A.S.A..B-31.1--1942, American Standards Association'

826 CHAPTER 41 1949.Guide The loss in the elbows can be assumed to be 12W or 10 ft, the friction loss of head per 100 equivalent ft is then for duct (1) 0.15+ 2X0.100286 iD- for duct (2) 0.08 6.10 + 0.10 -- 0.4 in.

1949 Guide s uo.

Air Conditioning SS'&SSJ* McQuay, Inc. 1602 Broadway, N.E., Minneapolis 13, Minn.

Con fx.dk >tu i_ Mellon Institute of Industrial Research PLAINTIFF'S EXHIBIT UNIVERSITY OF PITTSBURGH I PROGRESS REPORT for the week ended December 3, 1344 INDUSTRIAL HYGIENE FOUNDATION Subjects under which report is to be indexed Industrial Fellowship No. 253-10 3 copies m'de: 1 - Mellon Institute 2 - Industrie!

*UtCN'OtrLET)Gjri AIR HYGIENE FOUNDATION OF AMERICA, Inc.

Confidential ]SIellon Institute of Industrial Research UNIVERSITY OF PITTSBURGH PLAINTIFF'S EXHIBIT PROGRESS REPORT for the week ended December 3, 1948 INDUSTRIAL HYGIENE FOUNDATION Subjects under) which report is > to be indexed) Industrial Fellowship No. . 259-14 * ` *v , .

Confidential Mellon Institute of Industrial Research Univursitt or Pittsburgh PROGRESS REPORT for the___ Ekended___ September.. 12L, 19AJL. .T:0?

PLAINTIFF'S EXHIBIT JMMC-306 RECOVERY OF RAW ASBESTOS At The Havelock Mine By Boland- Starkey M.

Is!

CONTENTS Foundation Facts, 1947-4K Andrew Fletcher ...............................................................................................1 Page l-II-F in I1M7 John F.

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^IS bet S.

1.

ANNUAL REPORT INDUSTRIAL HEALTH SECTION Plant Surreya A total of 66 surveys of health conditions was conducted in the plants of our Group policyholders by the members of the Industrial Hygiene Laboratory Staff during the year 1948.