of the
geological formation of the earth, and its evolution from the days of
dinosaurs.

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CONTENTS

CHAPTER PAGE
I The Rodeo 1
II The Camping Trip 31
III Living off the Wilderness 58
IV With the Air Patrol 84
V A Daring Feat 95
VI The Incendiaries 110
VII The Cave 134
VIII The Snow-Slide 154
IX Ted's Fossil Dinosaur 163
X How the Earth Was Made 176
XI The Valley of Ten Thousand Smokes 201
XII Gold! 226
Glossary and Pronouncing Dictionary
of Geological Terms Used and Key
to Geologic Time 263

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UNEXPLORED

CHAPTER I

THE RODEO

Ted Smith, flinging his long legs off a frisky bay, grinned delightedly
as his eye caught a flag-decked touring car.

"Are you riding?" called the boy at the wheel.

"Sure AM!" drawled the ranch boy. "How about yourself?"

"Betcher life, Old Kid!" Ace King flung himself to the ground, disclosing
the fact of his new leather chaps--a contrast to Ted's overalls.
Greetings followed between Ted and Senator King in the back seat, and
Pedro Martinez, a black-eyed young fellow who sat a pinto pony alongside.

The slanting rays of California sunshine were fanned by a breeze from
Huntington Lake, as the crowd sifted about the corral fence at Cedar
Crest. The prevailing khaki of the dusty onlookers gave way at intervals
to a splash of color. An Indian in a purple shirt was borrowing the
orange chaps of another broncho-buster; he had drawn number two from the
hat. Most of the cowmen offset their "two-quart" sombreros with
brilliant-hued bandannas knotted loosely at their throats. A few wore
chaparreras in stamped leather, and a few in goatskin--red or black or
tan--though most let it go at plain blue overalls. One of the machines
drawn up beside the soda-pop stand fluttered a flag on its nose. For the
Fourth was to be marked by a reading of the Declaration of Independence
before the rodeo and barbecue. (The day had begun with a Parade of
Horribles, in which ev