Deserts, former shore lines in, [198];
self-registering gauge of past climates, [198].
Destructional topography, [309].
Detection of plunging folds, [49], [50].
Detonations, during Vulcanian eruptions, [131].
Device, to simulate building of cinder cones, [122].
Diabase, [462].
Diagram, to illustrate formation of lava reservoirs, [143].
Diagrams for comparison of fold types, [42];