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/ TUMORS OF THE SKIN 41 Apart from these natural environmental sources of arsenic exposure, giving rise to neoplastic growths of the skin, there have come into existence various important artificial conditions of an environmental contact with arsenicals for the general population in many countries (Zangger).

426 OCCUPATIONAL TUMORS AND ALLIED DISEASES various sources.

the other hand, as well as documents prepared at the request of, or for the benefit of such counsel or setting forth mental impressions of the attorneys on matters concerning Abex.

Copyright, 1922, by American Society of Heating & Ventilating Engineers ^ TW.

T A B LE 21.

" AMERICAN SOCIETY OF HEATING & YENTILATIN6 ENGINEERS 6HDEI923] Dia. of Pipe In.

Water Treatment Apparatus Anti-Corrosion Engineering Co., Inc. 117 West 54th Street New York, N.

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American.Society of Heating and Ventilating Engineers Guide, 1925-26 DESIGNING A FURNACE HEATING SYSTEM The design of a furnace heating system involves the determination of the following items: a.

T a b l e 38.

Roll of Membership LOWNSBERY, Benjamin F., (1920), Htg.

American Society of Heating and Ventilating Engineers Guide, 1928 the temperature difference between the inside and outside air, the result expresses the heat required to warm up the cold air leaking into the building per hour. 7.