INTERROGATORY NO. 51: Identify any and all scientific or medical periodicals to which defendant, any predecessor or any related company, or any medical department or industrial hygiene division thereof, subscribed from 1940 to the present, and for each periodical state the dates of such subscriptions.

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ST085I SOU THE JOURNAL OF INDUSTRIAL HYGIENE and TOXICOLOGY VOLUME 24 JANUARY, 1942--DECEMBER 1942 PUBLISHED BY THE WILLIAMS & WILKINS COMPANY Baltimore, Md.

The Principles and Practice of INDUSTRIAL MEDICINE Edited, by FRED J.

INTER-OFFICE MEMORANDUM TO: B.D.

TOXICITY 49 THRESHOLD LIMIT VALUES OP AIRBORNE CONTAMINANTS ISSUED RTEHVSISBEADBE RstEaAnRdRal RrMdCO SAPTY 3NOWUIUNC STANDARD APNX. 1941 JAN 1970 JAN 1B7S 9t 2 VT 1 IS in te Federal Register.

T able 6.

T able 1.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 requirements, in the air conditioning range of operation, is small for. a change of evaporator temperature.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 The volume of air in cubic feet per minute for the room is determined on the basis of the number of air changes per hour required.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 .

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 ment in the heating of residences that the gas consumption varied directly as the difference between 65 F and the outside temperature.

HEATINC VENTtLATINC AIR CONDITIONING GUIDE 1941 where G = grate area, square feet.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 avoid excessive deposits in the condensers.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 CUBBBKT Table 1.