| Cover slabs over the Great Drain. | 20 July 1931 | | |
| Investigating the Great Drain. | 22 July 1931 | | |
| View looking through the Great Drain. | 5 August 1931 | | |
| Stelae over the Great Drain. | 10 February 1932 | | |
| Stelae over the Great Drain. | 10 February 1932 | | |
| Great Drain with inscribed stelae used as cover. | 12 February 1932 | | |
| Great Drain with inscribed stelae used as cover. | 12 February 1932 | | |
| Wall of the Great Drain built of polygonal masonry. | 7 May 1932 | | |
| Wall of the Great Drain. | 7 May 1932 | | |
| Wall of the Great Drain built of polygonal masonry. | 7 May 1932 | | |
| Wall of the Great Drain. | 7 May 1932 | | |
| The stele of Philonos <i>in situ</i> in the Great Drain. | 26 June 1933 | | |
| The stele of Philonos <i>in situ</i> in the Great Drain. | 26 June 1933 | | |
| Plan of the Great Drain at fork in Section Ζ. | 1933 | | |
| Plan and elevation of the Great Drain in Section E. | 1933 | | |
| View of the Great Drain. | 21 March 1934 | | |
| Wall of the Great Drain. | 21 March 1934 | | |
| Wall of the Great Drain. | 21 March 1934 | | |
| View of the Great Drain. | 21 March 1934 | | |
| Wall of the Great Drain. | 21 March 1934 | | |
| Wall of the Great Drain. | 21 March 1934 | | |
| Trench to the west of the Great Drain. | 5 May 1934 | | |
| Trench to the west of the Great Drain. | 5 May 1934 | | |
| Trench to the west of the Great Drain. | 5 May 1934 | | |
| Trench to the west of the Great Drain. | 5 May 1934 | | |
| Trench to the west of the Great Drain. | 5 May 1934 | | |
| Trench to the west of the Great Drain. | 5 May 1934 | | |
| View of the Great Drain and the related channels. | 12 May 1934 | | |
| Amphora packing over tiles of the Great Drain. | 12 May 1934 | | |
| View of the Great Drain and the related channels. | 12 May 1934 | | |
| Amphora packing over tiles of the Great Drain. | 12 May 1934 | | |
| Burial in Metroon Drain Cut | 22 April 1935 | Neolithic | |
| Hellenistic branch of the Great Drain north of the South Stoa II. | 4 May 1935 | | |
| Hellenistic branch of the Great Drain north of the South Stoa II. | 4 May 1935 | | |
| Hellenistic branch of the Great Drain and east end of stepped retaining wall. Cf. nb. p. 1247. | 4 May 1935 | | |
| Hellenistic branch of the Great Drain north of the South Stoa II. | 4 May 1935 | | |
| Hellenistic branch of the Great Drain north of the South Stoa II. | 4 May 1935 | | |
| Hellenistic branch of the Great Drain and east end of stepped retaining wall. Cf. nb. p. 1247. | 4 May 1935 | | |
| Area between the Great Drain and the Middle Stoa. | 15 May 1935 | | |
| View of the Great Drain in front of the Metroon. | 15 May 1935 | | |
| Area between the Great Drain and the Middle Stoa. | 15 May 1935 | | |
| View of the Great Drain in front of the Metroon. | 15 May 1935 | | |
| View of the Great Drain. | 29 June 1935 | | |
| View of the Great Drain. | 29 June 1935 | | |
| Plan and section of an early grave between the Metroon and the Great Drain. Deposit I 9:2. Neolithic shaft grave in Metroon drain cut. | June 1935 | | |
| Photo of plan and section of an early grave between the Metroon and the Great Drain. Deposit I 9:2. Neolithic shaft grave in Metroon drain cut. | June 1935 | | |
| At left, brick built furnace. At right, casting-pit with base of molds in position. In foreground, the cutting for the Great Drain. Cf. nb. pp. 1218ff. | June 1936 | | |
| At left, brick built furnace. At right, casting-pit with base of molds in position. In foreground, the cutting for the Great Drain. Cf. nb. pp. 1218ff. | June 1936 | | |
| Cross sections through porch of Hellenistic Metroon and Great Drain. | 1936 | | |
| Cross sections through porch of Hellenistic Metroon and Great Drain. | 1936 | | |
| Pre-Persian buildings of the west side of the Agora. | 1936 | | |
| Cross sections through porch of Hellenistic Metroon. | 1936 | | |
| House of Late Roman period, to southeast of Tholos. General view showing Tholos to the west, and the Great Drain to the east. | 12 April 1937 | | |
| House of Late Roman period, to southeast of Tholos. General view showing Tholos to the west, and the Great Drain to the east. | 12 April 1937 | | |
| Area to the east of the Tholos showing the Tholos drains. Great Drain, West Branch, in foreground. | June 1937 | | |
| Polygonal wall beneath later course of Great Drain. | June 1937 | | |
| Area to the east of the Tholos showing the Tholos drains. Great Drain, West Branch, in foreground. | June 1937 | | |
| Polygonal wall beneath later course of Great Drain. | June 1937 | | |
| New course of the Great Drain. | 1937 | | |
| New course of the Great Drain, as found. The fork is visible in the middle foreground. | 1937 | | |
| West Branch of the Great Drain; the new course to the right, the old course to the left beneath Building C. | 1937 | | |
| New course of the Great Drain. | 1937 | | |
| New course of the Great Drain, as found. The fork is visible in the middle foreground. | 1937 | | |
| West Branch of the Great Drain; the new course to the right, the old course to the left beneath Building C. | 1937 | | |
| Rectangular base adjoining the Great Drain to the east of the Tholos with drain. | 15 February 1938 | | |
| Rectangular base adjoining the Great Drain to the east of the Tholos with drain. | 15 February 1938 | | |
| Boundary Stone | 27 February 1938 | | |
| Middle drain to north of Building C before final clearing. West Branch of the Great Drain showing its two courses. | 21 May 1938 | | |
| Middle drain to north of Building C before final clearing. West Branch of the Great Drain showing its two courses. | 21 May 1938 | | |
| Middle drain to the north of Building C, as cleared to bottom. | 24 May 1938 | | |
| Middle drain to the north of Building C, as cleared to bottom. | 24 May 1938 | | |
| Middle drain to north of Building C, as cleared. | 31 May 1938 | | |
| Middle drain to north of Building C, as cleared. | 31 May 1938 | | |
| Middle drain to north of Building C, as cleared. | 31 May 1938 | | |
| Middle drain to north of Building C, as cleared. | 31 May 1938 | | |
| The West Branch of the Great Drain in its early and late courses. | June 1938 | | |
| The West Branch of the Great Drain in its early and late courses. | June 1938 | | |
| Junction of the Great Drain and the drain from the kitchen of the Tholos. | August 1938 | | |
| Junction of the Great Drain and the drain from the kitchen of the Tholos. | August 1938 | | |
| West Branch of the Great Drain, early and late course. | May 1939 | | |
| West Branch of the Great Drain, early and late course. | May 1939 | | |
| Actual state plan of the area of the Tholos, buildings of the 6th century B.C. | 1939 | 6th century B.C. | |
| Restored plan of the area of the Tholos at the end of the 6th century B.C. | 1939 | The end of the 6th century B.C. | |
| Restored plan of the area of Tholos in the last quarter of the 6th century B.C. | 1939 | Last quarter of the 6th century B. C. | |
| Actual state plan of the area of the Tholos, buildings of the 6th century B.C. | 1939 | 6th century B.C. | |
| Restored plan of the area of the Tholos at the end of the 6th century B.C. | 1939 | | |
| Area of Tholos in first century A.D. (with addition of west annex). Restored plan. | 1939 | First century A.D. | |
| House F, later period. Fallen blocks and wall fragment. Compare with Hesperia 20 (1951), pl. 74, b. Great Drain at upper right. | 9 Aug 1947 | | |
| House F, later period. Fallen blocks and wall fragment. Compare with Hesperia 20 (1951), pl. 74, b. Great Drain at upper right. | 9 Aug 1947 | | |
| North foundation of the Middle Stoa at the west end, looking towards the northwest corner. Lower right, Great Drain, East Branch, at point where it passes under the north foundation. | August 1947 | | |
| North foundation of the Middle Stoa at the west end, looking towards the northwest corner. Lower right, Great Drain, East Branch, at point where it passes under the north foundation. | August 1947 | | |
| Restored plan of the area west of the Areopagus, including the Great Drain and the poros peribolos. | 1947 | | |
| Restored plan of the area west of the Areopagus, including the Great Drain and the poros peribolos. | 1947 | | |
| General view of the grave with cover slab removed. Walls of Great Drain at west and retaining wall beyond. Deposit D 16:2. | 10 Apr 1948 | | |
| General view of the grave with cover slab removed. Walls of Great Drain at west and retaining wall beyond. Deposit D 16:2. | 10 Apr 1948 | | |
| Urn cremation | 6-12 April 1948 | Early Geometric I | |
| Upper part of drawing: Houses A and B. Drawing to show types of construction used in the Great Drain and in the houses beside it. Lower part: east wall of drain opposite House A. Elevation and sketch plan to show construction. | 14 Apr 1948 | | |
| Great Drain below with cover slab; above, "bridge block", earth and tumbled breccia blocks. | 14 Apr 1948 | | |
| Great Drain with east-west retaining wall and tumble behind and above. | 14 Apr 1948 | | |
| East-west retaining wall over Great Drain with tumble above. | 14 Apr 1948 | | |
