Number
| Title | Author |
| No.177 |
Palynological Study on Japanese Coal. I. Method of Pollenanalysis on Japanese Coal |
Tokunaga Shigemoto |
| No.178 |
Studies on the Brackish Water. I. Geochemical Studies of Lake Hamana-Ko – On the Genesis of Natural Gas Accumulation – |
Motojima Koji and Maki Shin-ichi |
| No.179 |
Studies on the Brackish Water. II. Determination of the Chemical Constituents of Interstitial Water in Lake Mud and the Experiment on the Dissolution of Organic and Inorganic Substances from Mud of Lake Hamana-Ko |
Oana Shinya |
| No.180 |
Studies on the Brackish Water III. Recent Foraminifera from the Brackish Lake Hamana-Ko |
Ishiwada Yasufumi |
| No.181 |
Palynological Study on Japanese Coal. II. Pollenstratigraphical Investigations in the Coal Fields, Middle Hokkaido |
Tokunaga Shigemoto |
