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.


The works illustrated by the engravings are now being constructed
under a concession from the imperial government of Brazil. The
province of Ceara has an area of about 50,000 square miles, and is one
of the richest in Brazil. Its produce comprises sugar, coffee, cocoa,
cotton, tobacco, spices, fruit, cabinet and dye woods, India rubber,
etc. Its population at the last census, taken in 1877, amounted to
952,624 inhabitants, that of the capital, the city and port of Ceara,
being about 40,000. Although Ceara is the principal seaport at which
lines of English, French, American, Brazilian, and other steamers