of andAmerican Society Heating Ventilating Engineers Guide, 1928 As a check on the sizes of hot water mains, Table 8 will give safe sizes for gravity systems fed from roof tanks set not less than 20 ft. from the water line in tanks to the highest fixtures.

American Society of Heating and Ventilating Engineers Guide, 1928 VOIGT, Charles O., (1921).

American Society of Heating and Ventilating Engineers Guide, 1929 in length or for leaders which are not straight, the ratio of stack area to leader area should be greater than 70 per cent in order to offset the Chapter VIII--Gravity Warm-Air Furnace Heating. binations with the nearest comparable case as shown in these figures.

American Society of Heating and Ventilating Engineers Guide, 1929 tOAm M# Steam driven pumps can be economically used with steam pressures of 15 lb. or over and where the exhaust steam can be completely utilized.

American Society o/yHEATiNG and Ventilating Engineers Guide, 1929 type of heater specified for any condition of steam pressure, air velocity through heater, entering air temperature and final air temperature desired.

Georgiav&cific intracorrcu /memo 10 Mr.

^si Allied. , Chemical 1 NDU Vi k l AL CH c i C 1L S C 1V I i l (Ji-i \ INVOICE M.T.O. f-.LC COP':'- FOfiWAR0 IWOWRJES TO oun HEAREST SALES OFFICE.

Ethyl Corporation Medical Department I.

APR-25--'90 14:14 !

NAME Davis, Arthur V Davison, H.F.

COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF LABOR AND INDUSTRY HARRISBURG October 14, 1924 Dr.

CONTAINING AN ALPHABETICAL LIST OF BUSINESS FIRMS AND PRIVATE CITIZENS OF San Diego City Chuia Vista Coro Escondido National City Oceanside and All Other Towns and Postoffices Throughout the County A CLASSIFIED BUSINESS DIRECTORY An Appendix of Useful Information, Including a Street and Avenue a Directory of the State, Municipal and County Officials, Courts Societies, Schools, Churches, Clubs, Etc.

PRIVATE Oct. 9, 1920 contrary, will arrange for ateeirer shipment about Dec. 15th V - 7 truly your3, I, F FULLER & CO.

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65 ------ ----ENCLOSURES-, NST YORK, NOVEMBER 10th, 1920.