Dana, on mountain building, 120.
Dawson, reduction of surface represented by Laramide range, 123.
Deccan traps, 137
_déferlement_, theory of, 155; explanation of, 155 _et seq._;
temperature involved in, 156.
Deimos, dimensions of, 177; orbit of, 577.
De Lapparent, exotic nature of the Préalpes, 150.
De Montessus and the association of earthquakes with
geosynclines, 142.
Denudation as affected by continental elevation, 17; factors
promoting, 30 _et seg._; relative activity in mountains and on
plains, 35-40; solvent, by the sea, 40; the sodium index of,
46-50; thickness of rock-layer removed from the land, 51.
De Quincy, System of the Heavens, 200.
Dewar, Sir James, latent image formed at low temperatures, 202.