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Vol. 21 <<< Ι 1 Ι 2 Ι 3 Ι 4 Ι 5 Ι 6 Ι 7 Ι 8 Ι 9 Ι 10 Ι 11 Ι 12 Ι >>> Vol. 23

Gaseous Aliphatic Hydrocarbons (C1〜C5) in the Sedimentary Rocks (4,794KB) Hiroshi YONETANI and Takashi HIRUKAWA (1-18) On the Clay Deposits of Aki District, Kochi Prefecture (777KB) Yuji TSUKAWAKI (19-25) [ Summary ] A High Power Sparker System and Some Acoustical Characteristics of Underwater Electric Discharge (7,620KB) Jiro KOMAI (27-39) [ Notes ] Information of new arrival foreign documents (776KB) (41-47) Abstracts for Geological Survey Seminar (1970.11.17) (4,044KB) (49-52)