10 " CHAPTER 1 1949, Guide return ends of the heating units for preventing steam from entering the return mains; theyfalso have a pressure-equalizing and air-eliminating device at the end of the dry return.

86- CHAPTER 4 1949 Guide per Hour, and converting area in square feet to diameter in. inches, gives Qt = 3600 K 4X 144 V2gkt or where ..

158 CHAPTER 7 1949'Guid* (2) This establishes the maximumwhole number of coil-rows that can be.used as 6 and it is now possible to determine the actual location of the exit air conditions from Equatidnt by solving for the actual value of fa -- for a 6 row coil. : ............. 10.7 X 15 X 6 0.243 X 1740 'log. 102-80 S3 U idua 2.275 .

326 CHAPTER 16 1949 Guide matter.

620 CHAPTER 31 1949 Guide hot water or steam and connected as in an ordinary radiator system.

796 CHAPTER 40 1949 Guide V low, reference should also be made to sections of this chapter on Outlet Location and Selection as well as on Specific Applications.

888' CHAPTER 45 1949 Guide; Safeguarding the health, safety and efficiency of workers requires con trol of dusts, fumes, smokes, mists, fogs, vapors, and gases, and control of the effective temperature, which includes temperature, humidity and mo tion of air about the worker; General ventilation may be relied upon in some cases to control air con taminants.

Air System Equipment outlets and Grilles The Pyle-National Company Multi-Vent Division 1363-78 N.

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Knowledge of Asbestos Substitutes -1947 "The latest glassfibre process to be introduced into Germany was that originally developed by Owens-Illinois Glass Co. in America in 1934.

OTHER VOLUMES in this Series Many users of this volume will also find much value in its companion volumes.

THE INDUSTRIAL SAFETY MOVEMENT 4 In small units, statistical measures of performance are unreliable, so that it is difficult to produce clear-cut evidence as to the effectiveness of accident preven tion work In other words, a small plant may have, by luck, a good or bad acci dent record over a few years, whether or not its safety program is sound These are obstacles to progress, real and senous ones They are not, of course, ex cuses for failure to try to prevent acci dents The association approach offers some real hope for improvement.

f PLAINTIFF'S EXHIBIT GF-1812 ^Vc/UftOHt or "tops'' in playtime and...

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broad, burdensome, harassing, excessive in scope and time and incorrectly implying that its products were a health hazard.