was off in less than thirty seconds. For the first half
mile it was touch and go, for the trail was steep and even the three
fresh horses found the pace terrific. But little by little the timber
thinned and the fire gained less hold. Then, with a burst they came into
a clearing along the top of the ridge. The crest was black with workers,
over two hundred men were there, and on every side was to be heard the
sound of trees crashing to the ground, most of them by dynamite.

Where the head of the trail reached the crest stood the doctor and his
wife, the "little white lady" trembling with excitement as she watched
the fearful race from the jaws of a fiery death. The doctor plucked
Wilbur from his saddle as the horse rushed by him. The boy's senses were
reeling, but before he sank into insensibility from fatigue he heard
Merritt say:

"Loyle, when you're a Ranger next year, I want you on my forest."

THE END

[Illustration: "KEEP IT FROM SPREADING BOYS!"

_Photography by U. S. Forest Service._]

[Illustration: "GET BUSY NOW, WHEN IT BREAKS INTO THE OPEN!"

_Photography by U. S. Forest Service._]

_U. S. SERVICE SERIES_

By FRANCIS ROLT-WHEELER

Many illustrations from photographs taken in work for U. S.
Government ^Large 12mo ^Cloth ^$1.50 per volume

* * * * *

THE BOY WITH THE U. S. SURVEY

This story describes the thrilling adventures of members of the U. S.
Geological Survey, graphically woven into a stirring narrative that both
pleases and instructs. The author enjoys an intimate acquaintance with
the chiefs of the various bureaus in Washington, and is able to obtain
at first hand the material for his books.

"There is abundant charm and vigor in the narrative which is sure
to please the boy readers and will do much toward stimulating their
patriotism."--_Chicago News_.

THE BOY WITH THE U. S. FORESTERS

This life of a typical boy is followed in all its adventurous
detail--the mighty representative of our country's government, though
young in years--a youthful monarch in a vast domain of forest. Replete
with information, alive with adventure, and inciting patriotism at every
step.

"It is a fascinating romance of real life in our country, and will
prove a great pleasure and inspiration to the boys who read
it."--_The Continent, Chicago_.

THE BOY WITH THE U. S. CENSUS

The taking of the census frequently involves hardsh