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| Deep Exploratory Trenches North of Southwest Fountain House ... Κ-20 4084, 4085 83-31 ... 24 August 1961 |
| Northward Continuation of Stone Drain Bordering Southwest Fountain House ... Κ-21 4122, 4123 ... 7 September 1961 |
| Southward Continuation of Stone Drain ... Κ-21 4126, 4127 ... 18 August 1961 |
| Remnants of Creamy Poros. Limestone on Poros Sill. Double Wall. Oblique Foundation of Creamy Poros to North of Southwest Fountain House ... Κ-21 4128, 4129 ... 18 August 1961 |
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