The mean indicated horse power,
calculated from the mean of seven sets of indicator cards, taken
during the trial, and the mean revolutions per minute, found by
dividing the total revolutions recorded on the engine counter by the
minutes in the period of the trial, amounted to 2,124, thus making the
consumption 1.23 lb. per indicated horse power per hour, and the power
per square foot of fire grate almost exactly 19 indicated horse power.
While testing the indicated horse power and consumption of coal, the
steamer ran to and fro between the Cloch and Cumbrae lights, and also
made several runs on the measured mile at Skelmorlie, from which the
mean speed of the vessel was found to be 14.12 knots per hour. The
remarkably high results obtained were most satisfactory to the
representatives of the owners, and a large party of experts on board
congratulated Mr. Howden on the successful fulfillment of the onerous
guarantees undertaken.--_Engineering._
* * * * *
THE CEARA HARBOR WORKS.
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