<正> Ⅰ. INTRODUCTION. Ⅱ. DISTRIBUTION OF ESTHERIA-BEARING BEDS IN CHINA. (1) Estheria of the Laiyaug Formation, in Shantung. (2) Estheria of the Kweichow Series, in Hupef. (3) Estheria of the Liupanshan Series, in Kansu. (4) Estheria of the Kienteh Series, in Chekiang. (5) Estheria of the Nengkiang Formation, in Heilnngkiang.