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Natural History Identified: Similar comparisons across the North Atlantic are less easy to make but are also persuasive that Bullard's reconstruction has a high degree of validity.
A second link in the chain of evidence came from quite a different source. In March 1968. E. H. Colbert of the American Museum of Natural History identified a vertebrate fossil from Antarctica as being part of a jawbone of a freshwater amphibian known as labyrintho-dont, a creature similar to a salamander.
Frequently revised and brought up to date, they remained standard texts in English and American schools for nearly a century, as did his 8-volume History of Earth and Animated Nature (1774), a survey of natural history drawn from many sources, but enlivened and enriched by his own observations.
Natural and Man-made Glass.—The origin of the invention or discovery of glass is lost in the mists of time. As a natural product, looking like common stones and distinguished from them only by its brilliance, glass was scattered around the volcanic areas of the earth, having been fused by nature in her volcanic fires. This natural glass is known as obsidian. Man-made glass did not begin its progress until many centuries after the beginning of recorded history. |
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