Southwest Fountain House, early excavation ... AMS south Horizontal (normal) ... 11 May 1934
Early excavation view of the Southwest Fountain House ... AMS southwest Horizontal (normal) ... 13 May 1934
Corners at 27/KA. X is drop in water channel. View from northeast ... AMS 1012 Horizontal (normal) ... 11 May 1934
Digging the Great Drain. Fallen bedrock at 59/ΛΔ. View from south ... AMS 1033 Horizontal (normal) ... 12 May 1934
