With a lengthening trail[312] like a smoky pall,

Whose writhing folds envelope all.

“Stoke up!” shouts Bill, the engineer;

“We must rush this grade and the bottom clear

With a monstrous bulge, to pull up hill

T’other side—heavy train.” “All right, Bill!”

And the coal went in and the throttle out.

“Watch yo’ side the curve!” from Bill with a shout.

Adown the grade with open throttle

They swiftly glide as a flying shuttle—