abyss, than the train began to move. Young Dick, quick and sure in all his perceptions and adjustments, dropped on the instant to hands and knees on the trestle. This gave him better holding and more space, because he crouched beneath the overhang of the box-cars. Tim, not so quick in perceiving and adjusting, also overcome with Celtic rage at the brakeman, instead of dropping to hands and knees, remained upright to flare his opinion of the brakeman, to the brakeman, in lurid and ancestral terms.

“Get down! — drop!” Young Dick shouted.

But the opportunity had passed. On a down grade, the engine picked up the train rapidly. Facing the moving cars, with empty air at his back and the depth beneath, Tim tried to drop on hands and knees. But the first twist of his shoulders