Earth history is a subject of fascinating interest and also of much practical value. The various features of the earth, the continents and oceans, the mountains and plains, and the multitudinous assemblage of organisms in the waters, on land, and in the air have not always been as they are today. The orderly succession of rock strata and their innumerable contained relics of strange animals and plants were not made to mystify man, nor were the ores...
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History