Gila monster, [181]

Glacial Period. (See [Ice Ages].)

Glacial tables, how stones go walking in glacier land, [62]

Glacier Mills, [55]

Glaciers, how snow changes itself to ice, [26];
glaciers in their "working clothes," [29];
how to make glaciers and icebergs in the schoolroom, [32];
how glaciers helped make the gray stone "Temple of the Winds," [33];
how the glaciers of the Ice Ages made the Great Lakes, [34];
songs of the glacier and how it sings, [42], [56];
a day's visit with the Alpine glaciers, [49];
the crevasses and the adventure of Agassiz, [51];
how long it took Agassiz to determine the nature of glacial movements, [52];
why the peasants think the glacier has a soul, [54];
Mr. Glacier's caterpillar tractor, [62];
how the glaciers start Europe's rivers in business, [73];
how pebbles tell on what part of a glacier they travelled, [251]

Golden Gate, entrance to San Francisco harbor, how it was made, [224]

Gorges, [26], [82]

Grand Canyon, [88]

Granite, ancient lineage and social standing among earth's rocks, [17];
the Granites and the Fairyland of Change, [94];
how they crystallize their neighbors, [103];
how they help make sand, [170]

Gravitation, how it pulls the worlds into roundness, [5];
and helps them to grow up, [8];
how it helps sea waves to salute the mountains, [139];
equally careful in handling big worlds and little seeds, [261];
like all power it is invisible and intangible, [276]