The book Sparks From a Geologists Hammer Microform was written by author Winchell, Alexander, 1824-1891 Here you can read free online of Sparks From a Geologists Hammer Microform book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Sparks From a Geologists Hammer Microform a good or bad book?
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It lies back in the unmeasured realm of the geologic aeons. Since the disappearance of the glacier, geological results which, to the eye of -a generation, seem stationary, have been accumulated in aggregates of stupendous magnitude. The gorge of Niagara, seven miles long, one thousand feet broad, and two hundred and fifty feet deep, is thought by some geologists to have been worn out by an agency which, 154 SPAEKS FROM A GEOLOGIST'S HAMMER. save in extraordinary cases, demands a century to rend...er its results perceptible. Even if we only claim that portion of the gorge below the whirlpool as the record of post-glacial work, and then reflect upon the almost stationary position of the falls since first observed by civilized man, we re- ceive a profound impression of the length of the passing geological period. Much of the peninsula of Florida, within times geologically modern, has been undergrown by a coral reef and added to the domain of the land. The delta of the Mississippi has taken the place of a broad estuary which penetrated deep into the heart of the land.
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