2.IX.II.

Ice-action, 1841-1882.

2.IX.III.
The Parallel Roads of Glen Roy, 1841-1880.

2.IX.IV.Coral Reefs, Fossil and Recent, 1841-1881.

2.IX.V.Cleavage and Foliation, 1846-1856.
2.IX.VI.Age of the World, 1868-1877.