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Scientific American, Vol. 36, No. 3 (January 1877) (1877)

leaf 4

An illustration from Scientific American, Vol. 36, No. 3 (January 1877), 1877, leaf 4
e once a day, or once a week, according to the throwing its curvature in the opposite direction, in propor- the breaking up and shifting of the floes in spring, the con- changes in the weather. tion to the degree of the aridity. The reading of the probabil- sequent formation of new " one season's "… … THE PALEOCRYSTIC SEA. always upon the degree of the dry and wet on the scales, may judge from the engraving how far the existence of an ment, both the pine and the cedar must be carefully aried. but on the manner in which the index hand moves, through The pine should be placed in a warm oven, and…

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