| http://www.w3.org/ns/prov#value | - The origin of the present state of the heavens and the earth is a problem which lies strictly within the province of physical science ; so is that of the origin of man among living things ; so is that of the physical changes which the earth has un- dergone since the origin of man ; so is that of the origin of the various races and nations of men, with all their varieties of lan-
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