892 CHAPTER 34 1958 Guide crease performance' to any great extent, but increases operating hazards considerably.

906 CHAPTER 35 1958 Guide U = overall coefficient of heat transfer, Btu per.

352 CHAPTER 25 1959 Guide of Fig. 19.

490 CHAPTER 34 1959 Combustion Adjustments The present-day oil burner with mechanical oil and air supply, properly installed and equipped with an automatic draft regulator, is capable of maintaining efficient combus tion for a considerable period following the initial adjust ments of oil and air.

672 CHAPTER 49 1959 Guide Table 1....

704 CHAPTER 52 1959 Guide Table 3 ....

INSERT SECTION INDEX ANEMOSTAT CORPORATION OF AMERICA

Transact ionfi of 1 tih Annua) Meeting.

Industrial Hygiene Digest - 19 January, 1950 '57 Pigmentary Disturbance Following Exposure to Monobenzyl Ether of Hydro- . quinane.

rCAllONAL MUSEUM OF HEALTH AND MEDtQMiARMED forces INSTITUTE Of PATHOLOGY ' Participants in Seventh Stranae Syuposiua 1952 Lana*, Anthony J., M.D.

e National Safety Council Francis J.

Industrial Hygiene Digest - J2 September, iy52 significantly more radiological changes o: lumbar disc degeneration and jpoaalbly more osteo-arth-ritla -cf the knees than either manual cor .office . workers,' and there was a significant association between these radiological changes.and attacks -of pain In the lumbar-sciatic distribution and-ihe&nees, The miners also showed muxre arthritic changes in ether joints, such as the elbows and hips..

Industrial Hygiene Digest February. 1956 these data to appropriate filtration result*.

. 39.

EXHAVST SYSTEMS, GENERAL O COMFORT VENTILATION temperature plus large sources of radiated heat have been met by a suit of quilted ma terial faced with aluminized doth, a helmet with an infrared-reflective glass faceplate, and a self-contained air supply of com pressed gas With such an outfit, men have made emergency repairs in kilns, remaining almost indefinitely under temperatures up to 1,000 F.