Abstract
SINCE the note on this work appeared in NATURE (vol. lxxi. p. 38), we have been informed that the “editor” of it is Mr. E. Howard Adye, who is, in fact, responsible both for the text and for the very delicate plates. The second part includes two igneous rocks from Edinburgh, the Carboniferous oolite of Clifton, and the beautiful green quartzite of Ightham, described by Prof. Bonney in 1888. This last rock, we believe, usually contains altered glauconite in addition to the minerals mentioned by the author. We fancy that Mr. Adye is familiar with biological writing, which makes his descriptions rather more severely technical than is customary among English geologists. We thus read of a “dark brown fenestrated region at the periphery,” “hypo-odontoid outgrowths,” “biogenetic formation,” and so forth. We do not know, moreover, what degree of extraordinary accuracy is suggested by the phrases “completely polarised light” and “fully-crossed Nicols.” The text, however, is usually clear and graphic. The four rock-sections accompanying the part, and issued through the laboratory of Mr. J. R. Gregory, are absolutely perfect specimens of an art rarely cultivated in the British Isles.
The Twentieth Century Atlas of Microscopical Petrography.
Part ii. With four plates. (London: Thos. Murby, 1904.)
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C., G. The Twentieth Century Atlas of Microscopical Petrography . Nature 71, 341 (1905). https://doi.org/10.1038/071341a0
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DOI: https://doi.org/10.1038/071341a0
