the level of the lake's surface, [196] but toward the northeast, east and southeast there has been an determinable increase caused by landslides into the crater from the undermined walls. This has been greatest toward the northeast where the old walls are vertical, and the slides have continued to the present. (cf former note books and photos) Prior to May, 1902 a rest house which stood on the brink of the crater where the trail from the windward side arrived at the top of the mountain. James showed me that the ground on which this structure stood had disappeared. Without doubt it had slid down into the pit. The greatest activity of 1902-1903 was probably centered in the south.