Amphora packing over tiles of the Great Drain ... Horizontal (normal) ... 12 May 1934
View of the Great Drain in front of the Metroon ... north Horizontal (normal) ... 15 May 1935
View of the Great Drain ... southeast Horizontal (normal) ... 29 June 1935
New course of the Great Drain ... northeast Horizontal (normal) ... 1937
New course of the Great Drain, as found. The fork is visible in the middle foreground ... south Horizontal (normal) ... 1937
West Branch of the Great Drain; the new course to the right, the old course to the left beneath Building C ... north Horizontal (normal) ... 1937
Polygonal wall beneath later course of Great Drain ... east Horizontal (normal) ... June 1937
The West Branch of the Great Drain in its early and late courses ... southwest Horizontal (normal) ... June 1938