hour. The quotient is the constant re- FARRAR & TREFTS, quired. If a stop watch is used the seconds Steam Engine & 349 Broadwav, New York. Boiler Works.... per revolution can be found with great accu- 54 to 66 Perry Street racy. The reason this is only a rough method PERFECT - PUMP - POWER.… … If your dealer_does not keep it wrtie recent dwellings, gardens, views of groups and A parabola is most correctly described by direct to J. C. 5 estates, interiors, exteriors and plans. hoto- 59 Dearborn St., Chicago. SUST PUBLISHED locating a sufficient number of points on the graphs of…
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