384 CHAPTER IS 1952 Guide 2.

538 CHAPTER 22 1952 Guide amount of heat required to maintain the common equivalent temperature is of the order of 7 percent.

564 CHAPTER 24 ^ 1952 Guide vefit is-not required if the main is-above the heater in. which case.air can be eliminated through the piping system

680 CHAPTER 31 1952 Guide Fig. 7.

1G76 1952 Guide Williams Oil-O-Matic Div., Eureka Williams Oil-O-Matic Div., Eureka BURNERS, Gas (See Oas Burner) Williams Corp., 1393 Williams Corp., 1393 BURNERS, Oil (See OH Bumetr) BOILERS, Magazine Feed BOILERS, Unit Steam Gener Farrar A Trefts, Inc., 1359 ator CALKING, Building Spencer Heater, Lycoming-Spencer Cleaver-Brooks Co., 1353 Philip Carey Mfg.

166 CHAPTER 8 1953 Guide H .*' . 15 The Volumetric Incidence of Atmospheric Allergens', by 0.

246 CHAPTER 12 '1953 Guide effective temperature for sedentary persons, as determined at the A.S.H.V.E.

334 CHAPTER 14 1953 Guide soiled'filter paper.

480 CHAPTER 21 1953 Guide nee in the water level, at the.far end of the return, due to the difference in steam pressure, would be 1 of 28 in. (28 in. head being equal to one pound per sauare inch), or 3J in.

664 CHAPTER 31 1953 Guide Vt = velocity of primary air.

928 CHAPTER 43 1953 Guide CLASSIFICATION AND CHARACTERISTICS OF WATER For industrial use there is no accepted conventional classification of water.

942 CHAPTER 43 1953 Guide film-on the metal surface or to neutralization of the CO; by the alkali in theisilicate solution.

Confidential ^Mellon Institute of Industrial Research University of Pittsburgh PLAINTIFF'S EXHIBIT PROGRESS REPORT for the-weekended June 10, 1959.* 1 2 Air Rysiene Foundation___________ Industrial Fellowship No. 209- Subjects under which report is to be indexed 3 copies made: 1 - Mellon Institute 2 - Air Hygiene file Leaving here Monday afternoon, Dr.

~ Confidential Mellon Institute of Industrial Research University of Pittsburgh > PROGRESS REPORT for theweek ended November 18, 1959 AIR riYGIll'E FOUNDATIONIndustrial Fellowship No. 259-5 Subjects under which report is to be indexed 3 copies made: 1 - Mellon Institute 2 -' Air Hygiene file The fourth fall meeting of Air Hygiene Foundation was held on Tuesday and Wednesday, Not. 14-15, at Mellon Institute, Two hundred and forty-seven persons were registered.

PROPOSED RULES 12931 Copied by MCA Amendment of 1958 and which has been FDA knows of no studies which estab widely used since that time.