Abstract
PROF. EMMONS'S name is sufficient guarantee that a book from him merits serious consideration. In this work, an “Introduction”, which is rather fuller than such chapters are wont to be, will be found helpful to many students and to some who have passed the student stage, especially in the elucidation of bathyliths and their relation to gold deposition. Excluding this and the index, which occupies eighteen pages, half the book is taken up in descriptions of American gold occurrences, and the balance is left for the remainder of the world. It is this latter half that is open to criticism. For so dominant a producer as the Rand, more up-to-date figures might have been given for individual mines as regards values, widths, working costs and tonnage. For example, one diagram is based on assays made in 1913: the recent developments in which West Wit-watersrand Areas, Ltd. has so prominently figured are almost passed over, and the plan of the Hand printed on p. 421 is too small and confused to be of much value. The absence of recent data is noticeable throughout this part of the book ; thus it is stated that, “No production is reported for Sierra Leone”, whereas the Colonial Report for 1935 gives “32,947 ozs. (crude)” ; that in Tanganyika Territory the area north-east of Mwanza is unmapped, whereas excellent geological maps were published a few years ago.
Gold Deposits of the World:
with a Section on Prospecting. By Prof. William Harvey Emmons. Pp. vii+562. (New York and London: McGraw-Hill Book Co., Inc., 1937.) 36s.
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P., J. Gold Deposits of the World. Nature 141, 142 (1938). https://doi.org/10.1038/141142a0
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DOI: https://doi.org/10.1038/141142a0
