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This was not only a regular meeting,but also a gathering to welcomethe Japanese palaeontologist,Dr.I.Hayasaka,who recently came to study thegeology of northern China with his students of the Tohoku Imperial Univer-
This was not only a regular meeting, but also a gathering to welcome the Japanese palaeontologist, Dr.I.Hayasaka, who recently came to study the geology of northern China with his students of the Tohoku Imperial Univer-