Abstract
The writer investigated the distribution. of the salinity in the bay of Habu, Oshima. Water simples were taken simultaneous ly from. 30-50 points in the hay, on adjoining the sea and along the sea shore. This survey was performed for 7 days in. Aug. and one day in Dec. in 1948.
The writer observed that the slinity was high on the east side of the bay-mouth and low on the west. This was cawed. by the existence of springs of fresh water (no river is found along the coast), and the inflow of ocean water, with very high. salinity, and also by the left-hand circular current inside the bay which probably due to the deflecting force of the earth's rotation.
