Copyright 1949 '' BY THE American Society of Heating and.

274 CHAPTER 15 1949 Guide States.

580 CHAPTER 28 , 1949 Guide PIPE INSULATIONS Pipe insulations are of several general forms and are made of various types of material.

776 CHAPTER 39 1949 Guide pressure be maintained inside the compressor during discharge than in the condenser.

798 CHAPTER 40 1949 Guide to neutralize any undesirable cold drafts or radiation, effects set up by a concentration of the heating or cooling load.

498 1 i CHAPTER 21 19S0 Guide EXPANSION TANKS Water heated from 40 F to 200 F expands about 0.04 of the original volume.

I9 .t Vol. 3 August, 1941 Staff Hygienist Covers 2700 Miles in 3 Days Three Field Ken Now Busy with Plant Surveys In helping member companies "keep precautions apace v.lth production," one of the Foundation'3 industrial hygienists has averaged 2,000 milos a month for the past year.

CIRCULAR LETTER :J0.58i Butt#, ilontam, January 19, 1946 TO OEPARTLEHTS AND SUBSIDIARY COLP/.NIESj I advised by Circular Letter Bo. sal, November 23rd, 1945, relative to now Cotqprehenaive Liability Policy to cover any personal liability alleged from any accident (except automobiles which are covered separately).

FOR 1947- 1946 N12422 001537 V> Stay Beauty-*^ ~l hv nt' has Keen leaking out - - hut AU tht lid I* of?

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a V THE JOURNAL OF INDUSTRIAL HYGIENE AND TOXICOLOGY V/ HARVARD SCHOOL OF PUBLIC HEALTH tSManaging Editors Ph il ip Dr in k e r Ma r g a r e t S.

Dr George Calingaert Detroit Ur, G, '.7, Thomson and Dr.