Papers

Crush and abrasion tests of cobbles and gravels

Yasukazu KOSUGE, Masayuki SHOZAWA, Yuji HASEGAWA, Yoshifumi SATOFUKA and Takahisa MIZUYAMA　　3

Technical Report

Tephrochronological investigation of the long‐term landslide history in an area prone to deep‐seated landslides,Mount Wanitsukayama, Miyazaki, Japan

Osamu SHIMIZU and Kenshi HATANAKA　12

Technical Notes

The maintenance and improvement of disaster prevention capabilities of mountainous areas based on the Community Continuity Plan（CCP）-From the viewpoint of initial response in disaster situations-
　　　Tadanori ISHIZUKA, Yoichi MIKI and Kazuaki HIRAMOTO　20

General Review

Discussion on the method of expressing flow of volcanic materials in volcanic areas
　　　Haruo NISHIMOTO　26