A great embankment of morainic material with ice beneath, once part of the glacier, on the lowest slopes of Erebus at the landward end of C. Evans.

To-day I walked round the shores of the North Bay examining the kenyte cliffs and great masses of morainic material of the Barne Glacier, then on under the huge blue ice cliffs of the Glacier itself.

We have been elaborating a theory under which this ice had once a negative buoyancy due to the morainic material on top and in the lower layers of the ice mass, and had subsequently floated when the greater amount of this material had weathered out. Have arranged to go to C. Royds to-morrow.

We have a little difference of opinion as to whether this morainic material has been brought down in surface layers or pushed up from the bottom ice layers, as in Alpine glaciers.

The shifting of levels in the morainic material would account for the drying up of some lakes and the terrace formations in others, whilst curious trenches in the ground are obviously due to cracks in the ice beneath.