The book At Cornell was written by author O D Von Oscar Diedrich Engeln Here you can read free online of At Cornell book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is At Cornell a good or bad book?
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These layers of rock salt are nearly pure, and there can not, therefore, have been much sediment brought in by streams at this time; more- over, if there had been many streams, their waters would have sweetened and freshened the sea waters sufficiently to prevent precipitation of the salt. It is logical, then, to conclude that the climate of that period for this region was arid, so that little water found its way from the land into. The sea. But this condition, though of long duration, for ther...e are layers of solid salt, two hundred and fifty- eight feet in thickness, underlying Ithaca, eventually changed; a more humid climate followed, and, at the same time, the bottom of the inland sea began a slow subsidence, the rate of which seems to have kept pace very nearly with the rate at which the enlarged streams now supplied sediment and spread this sediment in layers over the bottom. This pro- cess continued with slight variations, until more than two thousand five hundred feet in thickness (the depth from the level of the Cornell campus to the salt), of shales, sandstones and limestones had accumulated.
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