Reports, Geological Survey of Japan(1950)

Table of contents

Number	Title	Author
No.131	Amynodon watanabei from the Latest Eocene of Japan with a Brief. Summary of the Latest Eocene Mammalian Faunule in Eastern Asia	Takai Fuyuji
No.132	Studies of Fossil Molluscan Biocoenosis, No.1. Biocoenological Studies on the Mangrove Swamps, with Descriptions of New Species from Yatuo Group	Oyama Katsura
No.133	On Landslip and Mud Stone Flow at Akagi Volcano, Insept. 1947	Koide Haku
No.134	Natural Glasses in Japan	Kawano Yoshinori
No.135	Geology of the Sarashina and Higashi-Chikuma District in Nagano Coal Field, Nagano Prefecture	Kobayashi Isamu and Isomi Hiroshi
No.136	Topographical Map of A New Volcano of Mt. Showa-Shinzan, Usu County, Iburi Province, Hokkaido	Kaneko Masatoshi