While they still kept their seats, Maurie started with a sudden jerk, made a sharp turn and ran the ambulance across a ridge of solid earth that seemed to be the only one of such character amongst all that waste of sand.

It brought them somewhat closer to the line but their driver drew up behind a great dune that afforded them considerable protection.
Fifty yards away was another ambulance with its wheels buried to the hubs in the loose sand.

Red Cross nurses and men wearing the emblem on their arms and caps were passing here and there, assisting the injured with "first aid," temporarily bandaging heads, arms and legs or carrying to the rear upon a stretcher a more seriously injured man.

Most of this corps were French; a few were English; some were Belgian.

Our friends were the only Americans on the field.
Uncle John's face was very grave as he alighted in the wake of his girls, who paid no attention to the fighting but at once ran to assist some of the wounded who came staggering toward the ambulance, some even creeping painfully on hands and knees.