Red Bluff Bay, Baranoff Island, Alaska. June 11 to 20 1907. Red Bluff Bay is on the east side of Baranoff Island a little south of its middle. It is about four miles long by one quarter to half of a mile wide. Except at the head of the bay the shores are steep or precipitous, and the surrounding mountains are high. At the head of the bay is a mud flat, the terminus of the bottom land bordering a small river coming from the west. There are a few acres of grass land bordering the tide line, but above the reach of the highest tides the bottom is heavily timbered with fir and hemlock, with much underbrush. The mountain sides are well timbered but the summits are extensive snow fields. The snow comes early and deep and lies late. It is evidently the coldest region we have visited as there are still a few banks of snow down to the sea level. A few plants were beginning to bloom, and the few days we were there showed a marked change in the plants. Shell collecting at the head of the bay and on the sides was very poor, but an hour spent on the outer beach near the entrance to the bay was fairly productive, particularly in large chitons. Frank Stephens