Gondwana Land, [16].
Gorges, through rock bars, [378].
Grabau, A. W., cited, [361], [366].
Grading of flood plain, [162].
Grand Cañon of the Colorado, [146], [169], [174], [215], [443].
Grand River outlet, [333].
Granite, [462];
dome structure in, [152], [157].
Granite domes, [221].
Granitic texture, of igneous rocks, [33].