American Society of Heating and Ventilating Engineers Guide, 1936 14 T able 5.

American Society of Heating and Ventilating Engineers Guide, 1936 354 Chapter 20--Air Duct Design smooth and 40 for rough conduits of tile, brick or concrete.

American Society of Heating and VENTIEATING ENGINEERS GUIDE 1936 FOR HEATING, VENTILATING, AIR CONDITIONING An Instrument of Service prepared for the Profession--Containing a Technical Data Section OF REFERENCE MATERIAL ON THE DESIGN AND SPECIFICATION OF HEATING, VENTILATING AND AIR CONDITIONING SYSTEMS--BASED ON THE TRANS ACTIONS--the Investigations of the Research Laboratory and Co operating Institutions--and the Practice of the Members and Friends of the Society together with a Manufacturers' Catalog Data Section Containing Essential and Reliable Information Concerning Modern Equipment ALSO The Roll of Membership of the Society WITH Complete Indexes to Technical and Catalog Data Sections Vol. 14 $5.00 Per Copy Published Annually by American Society of Heating and Ventilating Engineers 51 Madison Avenue New York, N.

Reasons the Companies Formed the Industrial Hygiene Foundation Exhibit No. 55 Date: January 22, 1935 Description: Letter from Vandiver Brown, Attorney for Johns-Manville, to M.F.

PLAINTIFF'S EXHIBIT MET-32S PBOBMBS RgCRT. 00CP1TI7Z g& BgCS3M THB romp amiss kjsuc ivbtick ua> 'fas ugRcpouxiM une heurakci copiey, from July 1. 1938 to Deoenber 1. 1934.

/ 1DVIS0RI EDUCATIONAL GROUP School Health Bureau - Welfare Division Metropolitan Life Insurance Company .

AZUSA PLANT - FACT SHEET 1.

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DEPARTMENT OF HEALTH JAMES A.

c;*\ in the atmosphere breatlioJi oooond, largo particloa are more effectively removed by the protective nioahcnioran of tho upper respiratory tract.

1 YEAR OF REG.

elOvk Page 17 of 84 Table of Contents ITEM 7.

J, ' ' | ' t^HtSI I H November 20, 1936 LeRoy U.

BARMArKmQcASNLOl \ \ AMERICA!?

PLAINTIFF'S EXHIBIT A(3 FRCW A/C Pipe Producers Association `ydie-d mtemaf Correspondence Executive Committee International Affairs Committee Q'^.UXelc.Llp/0 j/lj.