358 Scientific American. [DECEMBER 3, 1887. THE BOSTON SEWER SYSTEM AND each. The low duty engines were MAIN DRAINAGE WORKS. built by Henry R. Worthington & Co. (Continued from first page.) They cost $45,000 each. The leading Boston, indicates the intercepting se- data for each one is as follows: … little over 5 per cent on their excess of been built. Under its roadway the cost over cheaper low duty engines. sewer runs for about a mile. At theend This is supplemented, of of this line the pumping course, by a saving on station is established. Up boiler capacity; but the to this point in the…
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