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Although there is as yet no reason to expect the existence of life on those planets
nearest the Earth and every reason to doubt its existence on planets farther away
in the solar system, the most rigid precautions are still necessary. Experience ...
Specifically, an outline of present knowledge of the Earth's structure and
composition will be followed by coverage of the processes of continental
development and by treatment of the evolution of the several continental
elements resulting from ...
Copernicus concluded that, in view of the many circles and their displacements
from the center of the Earth that the Ptolemaic system required to account for the
observed motions of heavenly bodies, a simpler, alternative explanation might be
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LibraryThing ReviewUser Review - keylawk - LibraryThing
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review