563 CHAPTER 32 1946' Guide ment due to the space, power, or speed limitations.

714 .

760 CHAPTER 41 1946 Guide REFERENCES *--See Chapter 1 for definition of standard air.

826 CHAPTER 45 1946 Guide Table. 1.

806 CHAPTER 44 1948 Guide ment.

.. -4 : Rdtt;o//3?

386 CHAPTER 18 1949 Guide piping preventing return of condensation; (c) valve closed in return line; (d) connec tion of bottom of water column into a very active section or thin waterway; and (e) improper connections between boilers in battery permitting boiler with excess pres sure to push returning condensation into boiler with lower pressure. 4.

460 CHAPTER 22- 1949Guide .

608 CHAPTER 30 1940 Guide heaters are useful in. conserving and localizing heat delivery at definite points.

INDEX TO ADVERTISERS heating ventilating AIR CONDITIONING GUIDE, 1949 A Page ace ENGINEERING CO., 1435 West 15th St., Chicago 8, 111........................... 1278 ACME INDUSTRIES, INC., Jackson, Mich........................................................... 1136 AEROFIN CORP., 410 S.

Con fluent:.vl ) PLAINTIFF'S EXHIBIT ZSIellon Institute of Industrial Researc UNIVERSITY OF PITTSBURGH PROGRESS REPORT for the week ended January 20, 1945 INDUSTRIAL HYGIENE FOUNDATION Subjects under which report is to be indexed Industrial Fellowship No. 259-11 3 copies made: 1 - Mellon Institute 2 - Industrial Hygiene file The survey of dust and fume conditions for Pittsburgh Plate Glass Company, Works No. 4 and Shop No. 2, Ford City, Pa., was concluded. t Survey reports for Anaconda IFire and Cable Company, plants at Muskegon, Mich., and Sycamore, 111., were completed.

Preliminary Dust Surrey for Asbestos Textile Institute, Juno, 1947 1U.

Preliminary Dust Survey for Asbestos Tcxtllo Inatitutc, Juno, 1947, zk 2.

Standards Department, and this Department has developed process cards for all part numbers.

Industrial Hygiene Digest - 2 August, mo 831 Industrial Hygiene Expanded la.Penna.