Abstract
THIS work is designed to supplement the treatise of Prof. Beck on “Mineral Veins and their Contents,” by giving an account of the deposits of those useful mineral substances which are not classed as “ores.” The first volume, now published, is evidently the fruit of a vast amount of labour and bibliographical research, and deals only with four classes of materials, to each of which the amount of space devoted is as follows—graphite, 88 pages; diamonds, 94 pages; sulphur, 81 pages; and phosphates, 198 pages. In the case of each of these materials, the author, after preliminary notices of its mineralogical characters and modes of occurrence, proceeds to compile from the most varied sources descriptions of each of the districts in which it occurs. These descriptions are illustrated by page blocks (of which there are no fewer than 108 in the volume) giving sketch maps, sections, drawings, and photographs. Very miscellaneous information is supplied in these accounts of localities, including statistics of annual yield with prices and total values, and even, in some cases, examples of forms of agreement between sellers and buyers. In the case of the South African diamond fields, however, these statistics are, unfortunately, not brought down to later date than the year 1908.
Die wichtigsten Lagersttten der Nicht-Erze.
By Dr. O. Stutzer. Erster Teil, Graphit, Diamant, Schwefel, Phosphat. Pp. xv + 474. (Berlin: Gebrder Borntraeger, 1911.) Price 16 marks.
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Die wichtigsten Lagersttten der Nicht-Erze . Nature 87, 107 (1911). https://doi.org/10.1038/087107a0
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DOI: https://doi.org/10.1038/087107a0