Degeneration, [149].

De Geer, G., cited, [351], [366], [410].

Degradation, [161], [162].

Dekkan, fissure eruptions of, [101].

Delebecque, A., cited, [424].

De Lorenzo, cited, [125], [132].

Delta, “Bird-foot”, [167];

bottom-set beds, [167];

dry, [213];

of Mississippi River, rate of growth of, [168].