at that time are set down in the fifth volume of this series, entitled:
"Air Service Boys Flying For Victory."

Frequently they had found themselves in serious trouble, and their
escapes were both numerous and thrilling. Through it all they had been
highly favored, since neither of them had thus far met with a serious
accident. Numbers of their comrades had been registered as "missing," or
were known to have been shot down and lost.

It was no unusual thing a few days after a flier had gone out and failed
to return at evening, for a Hun pilot to sail over and drop a note
telling that he had fallen in combat, and was buried at a certain place
with his grave so marked that it could be easily found.

There seemed to be a vein of old-time chivalry among the German airmen
even up to the very last, such as had not marked any other branch of
their fighting forces, certainly not the navy. And the Americans made it
a point to return this courtesy whenever an opportunity arose.

Tom was proud of his ability to execute that difficult feat known as a
"nose-dive." More than once it had extricated him from a "pocket" into
which he found himself placed by circumstances, with three or more enemy
planes circling around and bombarding him from their active guns.

At such times the only hope of the attacked pilot lay in his ability to
drop down as if his machine had received a fatal blow and when once far
below the danger point again to recover an even keel.

Jack never doubted what the result would be, having the utmost confidence
in his comrade. The wind rushed past his ears as they pitched downward;