The Encyclopedia Americana: The International Reference Work, Volume 7Americana Corporation, 1955 - Encyclopedias and dictionaries |
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Page 28
What has happened in the history of civilization can only be briefly suggested by describing the salient characteristics of the next four great periods . Classical Period , 500 B.C. to 500 A.D. - In Europe , India , and China , during a ...
What has happened in the history of civilization can only be briefly suggested by describing the salient characteristics of the next four great periods . Classical Period , 500 B.C. to 500 A.D. - In Europe , India , and China , during a ...
Page 113
The last great ice age ( of the Pleistocene ) consisted of four major periods of glaciation : ( 1 ) Günz ( Nebraskan or ... But the eccentricity of the earth's orbit cannot account for the long Mindel - Riss interglacial period of about ...
The last great ice age ( of the Pleistocene ) consisted of four major periods of glaciation : ( 1 ) Günz ( Nebraskan or ... But the eccentricity of the earth's orbit cannot account for the long Mindel - Riss interglacial period of about ...
Page 356
We are now certain that all such comets move in very elongated ellipses , with periods extremely great . ... In the first case , its period is made longer and in extreme cases it may then go off in a hyperbola .
We are now certain that all such comets move in very elongated ellipses , with periods extremely great . ... In the first case , its period is made longer and in extreme cases it may then go off in a hyperbola .
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