Air System Equipment Heat Transfer Surface The G & O Manufacturing Company 138 Winchester Avenue New Haven, Connecticut GdO SQUARE FIN TUBING STRAIGHT LENGTHS--U-BENDS--CONTINUOUS COILS RADIATING ELEMENTS FOR ALL HEAT TRANSFER PURPOSES G&O Finned Radiation Coils for industrial applications are available in a wide range of sizes.

Heating Systems not water Bell and Gossett Company Morton Grove, Illinois (Suburb of Chicago) HOT WATER SYSTEMS AND SPECIALTIES B & G MONOFLO HEATING SYSTEMS B & G Monoflo Fitting A genuine advance in con trolled and economical heat ing is offered by the B & G Monoflo System.

Air System Equipment Air Filters and Cleaners American AirJFilterCompany Inc. 673 Central Avenue, Louisville, Ky.

Air System Equipment ceriuJsrs REGISTER & GRILLE MFG.

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An System Equipment Owens-Coming Fiberglas Corporation Toledo, Ohio ...j.'

Healing Systems >< water Bell and Gossett Company Morton Grove, Illinois HOT WATER SYSTEMS AND SPECIALTIES B & G Forced Hot Water Heating Systems *WCONOt VAt*tS To..a postwar world demanding improved ways of doing old things, B & G Forced Hot Water Heating contributes better heating at lower installation and operating cost.

Cases of mesothelioma Caused by Chrysotile Researcher Mesotheliomas confirmed Features McDonald Vienna/ Poulen Teta McDonald Robinson Scansetti Borow 9 confirmed 2 suspected "There is therefore no good reason to doubt chrysotile exposures as the cause" 3 "study of spouses with indirect, minimal, intermittant exposure to asbestos" mesotheliomas found in 3 women who were spouses of wor'.ers exposed only to chrysotile asbestos in the friction industry; one -- age 40 2 women clerical workers employed in a plant manufacturing brake linings using only chrysotile asbestos 3 2 brake lining installers; 1 brake lining manufacture chrysotile exposure only 17/385 confirmed "over 99% of asbestos was chrysotile...due to the overwhelming exposure of the cohort to chrysotile it is likely that the other exposures played a minor role in the overall mortality patterns" (a previous short term study detected no mesotheliomas) 1 winery worker who developed pleural mesothelioma 7.5 years after intermittantly opening chrysotile fiber bags for filtering wine 70 cases these cases were confirmed in just one manufacturing plant; previous study of only men older than 65 found only one; most of those found died of mesothelioma before age 65 !

KAISEFl ENGINEERS INTEROFFICE MEMORANDUM TO P.

' Air System Equipment Air Filters and Cleaners Air Devices, Inc.

Air System Equipment Motors The Louis Allis Co.

Air System Equipment Hendrick Manufacturing Company 48 Dundaff Street, Carbondale, Pal Sales offices in principal cities--consult telephone directories Hendrick Bulators; Hendrick Perforated Metal Grilles; Hendrick Mitco Open Steel Flooring, Armorgrids, Shur-Site Treads HENDRICK BULATOR* Hendrick Bulator* is a practicable com bination of an ornamental grille and a deflecting vane grille.

Heating Systems &5SS53JSSSS Crane Co.

626 CHAPTER 30 T950: Guide eah be Alleviated by some vane adjustment, provided an independent means for regulation of static pressure behind the vanes is included.

Air System Equipment Barber-Colman Company ENGINEERED AIR DISTRIBUTION OUTLETS Rockford, Illinois AUTOMATIC TEMPERATURE CONTROL SYSTEMS Quality-built units with directional diffusing fins provide quiet, uniform, draftless air distribution.