ILLUSTRATIONS AND PLANS
| The track of the Holzminden Tunnel after being dug up | Frontispiece | |
| A street in Ypres | ||
| The Cloth Hall in 1917 | to face p. | 2 |
| The Menin Gate of Ypres | ||
| The Battery in action N. of the Menin Road | ||
| The Menin Road | ” | 5 |
| At the waggon-lines | ||
| View from Kaserne B, showing skating rink made in January 1918 | to face p. | 30 |
| Karl Niemeyer | ” | 36 |
| General plan of Holzminden Camp | p. | 53 |
| Kaserne B | to face p. | 54 |
| Scene of the Walter-Medlicott attempt | ||
| A dining-room at Holzminden | ” | 61 |
| Section and ground-plan of staircase, chamber, and tunnel entrance | p. | 73 |
| Course of the tunnel | ” | 93 |
| At the tunnel mouth | to face p. | 100 |
| Section of attic roof | p. | 112 |
| Orderlies digging out the tunnel between Kaserne B and the outer wall | to face p. | 142 |
| Group of recaptured officers in a room at Holzminden | ” | 162 |
| Facsimile of the original permit-card copied by Lockhead | to face p. | 169 |
| Facsimile of the forged railway passport | between pp. | 174-5 |
| Map of N.W. Germany and frontiers | p. | 189 |