"Get up, you snowbirds, and sing for your salt."
CHAPTER XIII.
CAPTURED BY COSSACKS.
"Colonel, permit me to present a likely pair of air travelers who are never satisfied with the ground space they occupy."
Billy and Henri tipped their caps to six-feet-three of superb manhood, in Austrian uniform of dark blue.
Roque made the introduction, and the boys felt quite sure that this ceremony only completed advance notice of the character of service they were capable of rendering.
The officer, measuring the young aviators with a keen gray eye, nodded approbation.
"They will admirably fit in the carrying service," he remarked to Roque; "they are jockey weight, which is a good point for the assignment."
Billy assumed from the manner, if not the language used, that Henri and himself had successfully passed inspection.