Geologically he explained the rocks found and the problems unsolved. The basement rocks, as to the north, appear to be reddish and grey granites and altered slate (possibly bearing fossils). The Cloudmaker appears to be diorite; Mt. Buckley sedimentary. The suggested formation is of several layers of coal with sandstone above and below; interesting to find if it is so and investigate coal. Wood fossil conifer appears to have come from this—better to get leaves—wrap fossils up for protection.
Mt. Dawson described as pinkish limestone, with a wedge of dark rock; this very doubtful! Limestone is of great interest owing to chance of finding Cambrian fossils (Archeocyathus).
He mentioned the interest of finding here, as in Dry Valley, volcanic cones of recent date (later than the recession of the ice). As points to be looked to in Geology and Physiography:
1. Hope Island shape.
2. Character of wall facets.
3. Type of tributary glacierscliff or curtain, broken.
4. Do tributaries enter 'at grade'?
5. Lateral gullies pinnacled, &c., shape and size of slope.
6. Do tributaries cut out gullies—empty unoccupied cirques, hangers, &c.
7. Do upland moraines show tesselation?