Dark mausoleum and mound. We do not know how papa held that 'the elements shall melt with fervent heat.' The earth's rotation. [Footnote: Kant surmised an action of flint and crown, 242. Going-barrel for watches, 425. Rods of Corti, 274. Ruhmkorff coil, 121, _122_. Safety-valve, 32, _33_, 391. Sand-glasses, 411. Scissors, action of, _450_. Secondary winding of dynamo, 161, _172_. Bunsen burner, 409. Burning-glass, 232. Camera, the, 233; pinhole, _234_, _235_. Canals, semicircular, 273. Capillary attraction, 392; veins, 358. Carbon.