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Scientific American, Vol. 89, No. 2 (1903) (1903)
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at Race Street and 47 at Broad Street. When The engineering work which made the tests possible is at 4.03 the “Stuart” began to pump into the system feet and at the same time the two nozzles on the truck to be credited to the Hoffman Engineering Company, and reached a water pressure of 225 pounds… … PHILADELPHIA'S HIGH-PRESSURE FIRE PIPE LINE. © 1903 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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