All he could see of his enemies would be, first, a rifle thrust carefully over the levee, then a very small portion of a head would appear, and the bullet would come straight to the mark.
In the mean time the Milwaukee was working her way out into the stream, and the rebels, finding that their fire was not returned, grew bolder by degrees, and became less careful to conceal themselves.

This was what Frank wanted; but he reserved his fire until a tall rebel rose to his full hight from behind the levee, fired his gun, and stood watching the effect of the shot.

Frank's musket was at his shoulder in an instant, his finger pressed the trigger, and the rebel staggered for a moment, and disappeared behind the levee.
"There," said Frank to himself, "that's what Simpson would call 'squaring the yards.' I'm even with the rascals now." The rebels answered the shot with load yells, and their bullets fell thicker than ever; but the Milwaukee was almost out of range, and, in a few moments, the firing ceased altogether..