In view of the extensive distribution of the "Fusulina Limestone" in North China it was formerly suggested~1 that a careful study of the Fusulina might throw some light upon the vexed problem of the age of the Palaeozoic
J. S. LEE, Peking National University.1926. CLASSIFICATION AND CORRELATION BASED ON THE DISTRIBUTION OF THE FUSULINA LIMESTONES[J]. Acta Geologica Sinica(),5(2):
