1074 1951 Guide Coal-Heat,1448 Domestic Engineering, 1449 Heating A Plumbing Epuipment News, 1450 Heating A Ventilating, 1450 Heating, Piping and Air Condition ing, 1451 Plumbing and Heating Journal, 1452 Sheet Metal Worker, 1452' Snips Magazine, 1453 - PUMPS, Fuel Oil Ace Engineering Co., 1347 ' Propellair Div., Robbins- A Myers, Inc., 1233 Ray Oil Burner Co., 1350-1357 PUMPS.

1078 1951 Guide United States Eadiator Corp., .

76 CHAPTER 4 1952 Guide solid and partly broken) of Fig. 6 is found.

316 CHAPTER 12 1952 Guide REFERENCES 1 Application Engineering Standards for Air Conditioning for Comfort (Atr Conditioning and Refrigerat ing Machinery Association, Inc., 1947, pp. 4-7)

total loss IN flue gas in per cent 338 C0APTER 13 , 1952 Guide Fuels and Combustion 1 This fact indicates that, while combustion processes involving common types of fuel may be regulated by experienced operators to produce the most efficient results, normal combustion processes can be so unbalanced as to create hazards unless both design and operation are'planned with'a knowl edge of the fundamental principles of combustion.

664 CHAPTER 30 1952 Guido condition'whereby two high velocity jets are created along the Bides of the ductyor the air spills immediately downward into the occupied zone (See.C Fig. 7). ' 5.

926 CHAPTER 43 1952 Guide / s.

1086 1952 Guide Campbell Beating Co., 1124-1125, Barnes A Jones, Inc., 1409 HUMIDITY AND TEMPERA- 1142 C.

214 CHAPTER 10 1953 Guide .

-478 CHAPTER 20 1953 Guide / 3.

558 CHAPTER 24 1953 Guide !

914 CHAPTER 42 1953 Guide X Resistor with Focusing Reflector An example of the focusing-reflector-type heating unit is the copperbowl parabolic of circular glow heater for portable use.

1114 1953 Guide.

1118 1953 Guide: ^American Radiator A Standard Powers Regulator Co.

I PLAINTIFF'S EXHIBIT IHF-473 IVAN SABOURIN , Q.C.