Report On the Lands of the Arid Region of the United States, With a More Detailed Account of the Lands of Utah. With Maps
The book Report On the Lands of the Arid Region of the United States, With a More Detailed Account of the Lands of Utah. With Maps was written by author Powell John Wesley Here you can read free online of Report On the Lands of the Arid Region of the United States, With a More Detailed Account of the Lands of Utah. With Maps book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Report On the Lands of the Arid Region of the United States, With a More Detailed Account of the Lands of Utah. With Maps a good or bad book?
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It is generally supposed that the change is a phenomenon of cli- mate, and this hypothesis includes harmoniously the increase of streams with the increase of lake surface. By some it is thought that the climate of the district is undergoing, or has undergone, a permanent change ; and bv others that the series of oscillations about a mean condition which char- acterizes every climate has in this case developed a moist phase of excep- tional degree and duration. The latter view was my own before ...I became aware of the features of the ancient storm line, but it now appears to me untenable. That a variable surface of evaporation, which had for a long period recognized a limit to its expansion, should not merely exceed that limit, but should maintain an abnormal extent for more than a decade, is in a high degree improbable. It is far more probable that one of those gradual climatic changes, of Avhich geology has shown the magnitude and meteorology has illustrated the slowness, here finds a manifestation.
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