Abstract
THIS book of four chapters is a reprint, with some amplification, of lectures given by Prof. Vernadsky at the Sorbonne during 1922-23. The first chapter, which opens with the questionable statement that geochemistry is a science new to the twentieth century, is devoted to general considerations, including the subdivision of the earth's outer layers or envelopes according to their physical, chemical and biological characteristics. Apart from the atmospheric layers, Vernadsky's various groupings of these envelopes may be indicated roughly as follows:
La Géochimie.
Par Prof. W. Vernadsky. (Nouvelle Collection scientifique.) Pp. vi + 404. (Paris: Félix Alcan, 1924.) 12 francs.
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C., T. La Géochimie . Nature 116, 43 (1925). https://doi.org/10.1038/116043a0
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DOI: https://doi.org/10.1038/116043a0