Chapter I: Front Matter

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FIGHTING THE BOCHE UNDERGROUND

FIGHTING THE BOCHE UNDERGROUND

by

H. D. TROUNCE

Formerly of the Royal British Engineers Now Captain of Engineers, U.S.A.

With Illustrations and Diagrams

New York Charles Scribner's Sons 1918

Copyright, 1918, by Charles Scribner's Sons

Published October, 1918

CONTENTS

CHAPTER PAGE

I. INTRODUCTORY 1

II. TO THE FRONT 12

III. UNDERGROUND 27

IV. CRATER FIGHTING 44

V. TUNNELLING IN THE VIMY RIDGE TRENCHES 61

VI. CHALK CAVERNS AND TRENCH MORTARS 78

VII. AROUND THE VIMY RIDGE 97

VIII. THE SOMME SHOW 115

IX. THE BATTLE OF THE ANCRE 127

X. THE RETREAT OF ARRAS 142

XI. THE BATTLE OF ARRAS 162

XII. THE HINDENBURG LINE 176

XIII. THE PSYCHOLOGY OF FEAR 199

XIV. SOME PRINCIPLES OF MINING 207

ILLUSTRATIONS

Captain Trounce _Frontispiece_

FACING PAGE

Breathing-apparatus necessary in going into "gassy" galleries 50

Sector near Neuville-St.-Vaast, Vimy Ridge trenches, April 3, 1916 64

The same sector, Vimy Ridge trenches, May 16, 1916 66

Explosion of a mine 80

A cellar, protected by sand-bags, in the village of Hebuterne used as a shelter by engineer officers 130

In a German trench 156

View from rear of a typical German reinforced concrete machine-gun emplacement. Taken on the Hindenburg line south of Arras 178

Rough sketch illustrating breastworks and systems of underground galleries _At end of volume_