Chicago outlet, [331].

Chimneys, in “driftless area”, [300].

Chimneys, shore feature, [234].

China, loess of, [207].

Chlorite, [458].

Chlorite schist, [465].

Cicatrice, from dissection of volcanoes, [142].

Cinder cones, [105];

corrugations upon, [138];

diameter of crater in relation to violence of explosions, [123];