. American engineer and railroad journal . r, duringthe past three years, had for their cardinal purpose the compari-son of one character of fuel with another. It was hoped—andin part only was that hope realized—that the engineering inves-tigations would give us results even more valuable than theywere ; but the equipment which we were compelled to use in thebeginning was selected because it represented the ordinary powerplant in use in the United States, and the comparisons of thevarious fuels have been made on this equipment with only suchslight modifications as were feasible at the time. It
. American engineer and railroad journal . r, duringthe past three years, had for their cardinal purpose the compari-son of one character of fuel with another. It was hoped—andin part only was that hope realized—that the engineering inves-tigations would give us results even more valuable than theywere ; but the equipment which we were compelled to use in thebeginning was selected because it represented the ordinary powerplant in use in the United States, and the comparisons of thevarious fuels have been made on this equipment with only suchslight modifications as were feasible at the time. It has been common to find, where there is a vein eight feet111 thickness, that two or three feet is left unmined and is per-manently lost, because of the subsequent caving in of the have found, furthermore, that there is no sharp line drawnbetween high grade and low grade fuels; that in certain minesthe amount of coal left unmined, under the ground, exceeded 75per cent, of the total available coal, ami the average result is 121.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
