Domes (Mt.), [123]

Drift theory, [120]

Drowned valleys, [212]

Drumlin, why an Irish boy would know what "drumlin" means, [122]

Dunes, [163]

Earth, story of the spoiled boy who set it afire, [2];
how much truth science finds in the Phaeton myth, [3];
theories as to the earth's origin and how they compare with the Bible story, [17];
watching worlds in the making, [5], [6];
the sun and his pebble worlds, [6];
how you can watch the world turn round, [7];
how the continents came up out of the sea, [8], [14];
lands the seas have swallowed, [11];
reasons for thinking the continents won't go under again, [12];
how earth's slowing up helped make mountains, [137]

Earthquakes, how growing mountains make them, [86];
earthquakes that travel incog., [158];
how earthquakes are recorded in the veins of marble, [239];
earthquakes and the earth's "faults," [243]

Echoes, Arab superstitions about, [187]

Electrons, how they act as messenger boys of the universe, [110]

Emerson, on the industries of England, [214]