Thus the steam-engine is due to the discovery that if heat be applied to water, the result is steam expanding with much force, so that a firebox, coal, boiler, and water are causes of force.
"Political economy"
W. Stanley Jevons
One or two look up from their food as the author makes his way to the window from which he commands a glimpse of blue sky, the elevation of an enormous brick wall, and possibly a locomotive having its firebox cleaned on a siding and panting as though afflicted with lung trouble.
"An Ocean Tramp"
William McFee
He was the only buyer of moment who had appeared since Sugar broke 125. Barry Conant and his lieutenants had disappeared like snowflakes at the opening of the door of the firebox of a locomotive speeding through the storm.
"Friday, the Thirteenth"
Thomas W. Lawson