The book Walks And Talks in the Geological Field was written by author Winchell, Alexander, 1824-1891 Here you can read free online of Walks And Talks in the Geological Field book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Walks And Talks in the Geological Field a good or bad book?
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The ' days ' of Genesis were twenty-four hours long. Hurrah ! " The life of geology was scarcely conscious of a ripple. The old principles rest firmly. The facts cited, instead of proving destructive, confirm another doctrine even more dreadful than that of successive faunas and great antiquity — the doctrine Lesson prom i. Lump of Chalk. 169 of correlation of organic structure with environment. Faunas change as the physical surroundings change ; but if the physi- cal surroundings remain change...less, the faunas remain change- less. Down in the deep sea, with a constant temperature of freezing water ; with perpetual absence of the stimulus of light ; without inotion ; without change of chemical condi- tions — with almost absolute changelessness for ages, why should organisms change ? They are now suited to the environment ; they could not change without becoming unsuited to the en- vironment. The forms from the Age of Chalk have survived because a deeper principle than that of succession of faunas has been dominant.
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