Copyright, 1917, by
AMERICAN AUTHORS PUBLISHING CO.


CONTENTS

CHAPTERPAGE
IAn Interrupted Journey[15]
IITheir Experiences with the Uhlans[25]
IIIThe Wrecked Train[34]
IVThe Work of a Spy[41]
VThe Struggle through the Country[54]
VIOn the Road to Liège[59]
VIIA Thrilling Fight[72]
VIIIThey Reach the Belgian Forces[84]
IXThe First Battle[96]
XIn the Messenger Service[107]
XIPursued by the Uhlans[118]
XIICatching a Spy[132]
XIIIThe Loss of Their Machines in Battle[147]
XIVThe Capture and Escape[161]

LIST OF ILLUSTRATIONS

"They Are the Fellows Who Stopped Our Train,"
Said Ralph
[Frontispiece]
Page
Belgian Flag[18]
German 42-Centimeter Gun[61]
Using Dipper to Find North[79]
Shrapnel Shell[90]
Exploding Shrapnel[91]
German Taube Airplane[97]
A Dome-Topped Fort of Liège[118]
Map of Liège[131]
Map of Louvain[165]

THE BOY VOLUNTEERS
ON THE
BELGIAN FRONT