American Society of Heating and Ventilating Engineers Guide, 1937 SIZING AN UP-FEED RISER When the riser is an up-feed, the opposite condition occurs; that is there is a drop in pressure as the top of the riser is approached, due to the natural reduction in the gravity pressure, and to this must be added the pipe friction plus that introduced by the pipe fittings, all of which produce an excessive drop when compared to the conditions existing with a downfeed riser.

American Society of Heating and Ventilating Engineers Guide, 1937 7.0 State the advantages and disadvantages of tunnels over conduits.

Heating Ventilating Air Conditioning Guide 1938 ht -- A, = the increase in the heat content of the air-water vapor mixture in passing through the apparatus, Btu per pound of dry air = 0.24 (/, - /,) + W, (1059.2 + 0.451,) - Wt (1059.2 + 0.451,) The net quantity of heat added to or removed from air-water vapor mixtures in air conditioning work is frequently approximated by taking the differences in total heat at exit and entrance.

Heating Ventilating Air Conditioning Guide 1938 gases, such as sulphur dioxide and sulphuric acid mist, which are dis charged with the gases of combustion.

msgsmam*-',, - ---- -------- -- " Heating Ventilating Air Conditioning Guide 1938 return to the boiler or to waste, graduated or ordinary radiator valves, no automatic air valves on the radiators, thermostatic traps on the radiator returns, and the venting of all air from the system by means of pipes open to the atmosphere.

Heating Ventilating Air Conditioning Guide 1938 Table 8.

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Page 259 Page 261 1 You will also hear from an individual by the 1 case Ford Motor Company responsible for Mr.

Page 2069 1 A Some of the workers in the population, even 2 exposures below, still presented with some disease, so 3 his value was that he considered it a tentative value 4 until further research could be done. 5 Q Now, in his references -- was there a 6 lengthy set of references that went along with the 7 Dreessen study?

decent developments in Canada have focused attention on the question of the relationship between asbestosla and tuberculosis* Asbestosis has been declared a compensable disease in the Province of Q&ebac, thus increasing medico-legal interest in. the establishment of this diagnosis and evaluation of any contributing factors* ' Autopsy of asbestos miners has disclosed evidence of active tuberculosis and asbestosis 1&2 in the sane individuals* In Thetford Hines, where a substantial part of all the .

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Effective May 2,1938 The PRICE of PERFORATED ROCKLATH L-- ; r* |\ FILE | t-J fl f-- J L * 'J Cni REDUCED~ade=U(ar& ^yrJfectiaw ^5/ per 1,000 feet!''

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f - 1- 11-3-80 MALIGNANT MESOTHELIOMA IN CONNECTICUT 1935 - 197T Uy H.