18 1958 Guide National-U.

6 CHAPTER 1 1959 Guide Thermodynamics, Laws of: Two laws upon which rest the classical theory of thermodynamics.

158 CHAPTER 12 1959 Guide effective temperature for sedentary persons, as; determined at the ASHAE Research Laboratory, is 67-68 ET.

160 CHAPTER 12 1959 Guide Table 5 ....

424 CHAPTER 30 1959 Guide Rg. 16 ....

454 CHAPTER 32 1959 Guide hn.

580 CHAPTER 40 1959 Guide lake increases from 0 to 10 Btu per (sq ft) (hr) (F deg temperature difference) of air and lake water surface, for duty up to 150 Btu per (sq ft) (hr) and wind velocities up to 6 mph with air temperatures varying from 20 to 80 F.

144 Air Conditioning uktrtsair ELECTRICAL TESTING LABORATORIES, INC. 2 Eos) End Avenue at 79th Street * New York 2?

Other Volumes in this Series Users of this volume will find much value in its companion volumes.

Industrial Hygiene Digest - 6 I' .~ - i - n Mia January, 1950 `at the plant.

awMttwu National Safety Council TRUSTEES Chairman of the Trurteetr .

t r* , National Safety Council TRUSTEES Chairman of the Trustees: W.

78 1955 National Safety Congress Experience in bis own field will enable the plant and manufacturing engineer to recognize and avoid the ttse of noisy ma- dunes and processes when possible.

Industrial Hygiene Digest Februarr, 19S6 INDUSTRIAL DUSTS 240 Silicosis Rlak in Relation to Silica Doit la the Environment and to Length of Exposure tq a Ceramic* Factory.

industrial Hygiene Digest June, 1957 793 Pulmonary Effect* from Radioactive Thallium-Activated Clay Particles.