Birds, life in the desert, [178]
Bombs (volcanic), what they are and how they are made, [129]
Boulders, Agassiz' monument, [54];
travels of Plymouth Rock, [64];
boulders on a New England hill, [145];
why the Indians worshipped a boulder, [146];
the strange stranger on Mount Abu, [147];
as mountain climbers, [147], [152];
why there are no big caves in boulder regions, [148];
how boulders help tell the secret of the Ice Age, [149];
how torrents help shape, [151];
how glaciers carry, [151];
how boulders ride on the water, [153];
how Jack Frost builds boulder walls, [154];
how the sun helps shape boulders, [155];
Geikie on the story told by a conglomerate boulder, [155];
Ruskin on boulders in art, [157];
why boulders sometimes jump up from the ground, [158];
how rain drops split boulders, [171];
how boulders shiver their skins off, [170];
boulders in the rock mills of the sea, [216];
how perched boulders are perched, [149];
the perched boulder in Bronx Park, in New York City, and its autograph, [250]
Bridal Veil Falls, how it got its name and why it hurries to "catch the train," [74]
Butterflies, how they help in Alpine flower gardening, [46];
why they hide from the cloud shadows, [56]
Cactus, the desert water bottle, [174]
Cactus wren, how she bars her front door against her bad neighbors, [177]
Cæsar, Julius, his literary style compared to that of Mr. Glacier, [254];
how he and Mr. Glacier went into winter quarters, [256]
Canada, her sea terraces for the gannets, [223]
Canada thistles, and the Siberian "wind witches," [178]