抄録
Sandstone slabs penetrated by numerous minute straight joints with very slight vertical displacements were recently found by RIN quite abundantly around the peak region of Nanko-Taizan, where physiogiaphical evidences of former glaciation seem to have been ascertained by TANAKA and KANÔ. They reported to have found there glacier-scratched boulder, for which Ris searched earnestly but in vain. The joints, or rather minute faults are represented by equally minute flexures here and there in the slate patch attached to the surface of the specimen.
