Willis had some useful qualities, but he was slack, and got sulky if one drove him hard.

The young man had come from the drawing-office of a famous bridge-building works.
In the meantime, the rumble of the gravel train grew to a pulsating roar.

The locomotive had crossed the divide and was running furiously down grade.

The roughly-ballasted track was uneven, but the engineer had been on board since daybreak and no doubt wanted to finish his job.
"She's in the rock cut now," Kemp remarked.

"Hardie ought to throttle down when he runs out and sees the light." Lister listened.