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地质学报 1922
ProceedingsoftheSociety, PP. 32-39 Abstract: Thiswasnotonlyaregularmeeting,butalsoagatheringtowelcometheJapanesepalaeontologist,Dr.I.Hayasaka,whorecentlycametostudythegeologyofnorthernChinawithhisstudentsoftheTohokuImperialUniver-
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