163
XVIII The Civil Engineering Examination 173
XIX Off for Texas 181
XX In New York City 191
XXI Dave in Washington 201
XXII In Texas at Last 211
XXIII At the Engineering Camp 221
XXIV A Midnight Alarm 230
XXV The Mexican Raiders 239
XXVI The Chase on the Bridge 249
XXVII Across the Rio Grande 259
XXVIII A Strange Discovery 269
XXIX The Capture 278
XXX The Fortune Recovered--Conclusion 288

ILLUSTRATIONS

The team left the roadway, and the next instant had
crashed through a frail railway fence (_Page
24_) _Frontispiece_

FACING
PAGE
He seized Porton's upraised arm and backed the
fellow against a tree 70
From under the snow and the robes crawled the boys
and the girls 102
Slowly the train puffed in, and proved to be a
freight 136
The young people played games, sang, and danced to
their hearts' content 170
The next instant he was dashing into the street 202
"Here we are at the camp!" announced the guide 226
"Hold tight, Roger! I'll help you," returned Dave,
quickly 256

DAVE PORTER AND HIS DOUBLE

CHAPTER I

OFF FOR A SLEIGH-RIDE

"What is the matter, Dave? You look rather mystified."

"I am mystified, Laura," replied Dave Porter. "I have a letter here
that I can't understand at all."

"Whom is it from?" questioned Laura Porter, as she came closer to her
brother, who was ensconced in the largest easy-chair the Wadsworth
library contained.

"It's from a shopkeeper in Co