Le Rocce Concetti e Nozioni di Petrografia
1919; Nature Portfolio; Volume: 103; Issue: 2590 Linguagem: Inglês
10.1038/103304a0
ISSN1476-4687
Autores Tópico(s)Geological and Geophysical Studies Worldwide
ResumoPROF. ARTINI states in his preface that there has been no general treatise on rocks in the Italian language since that by Achiardi, published thirty years ago. He rightly remarks that a transla tion is always an indifferent expedient; a book for Italians should be rich in Italian examples. He looks on rocks from the point of view of a naturalist, and his use of landscapes among his illustrations makes us hope that he will some day give us a petrography of Italy that will connect mineral evolution with the scenery from Monte Bianco to Catania. The material here brought together is thoroughly up to date; we may cite, for instance, the remarks on idrogels (p. 186), on bipyramidal quartz (p. 338), and on the alleged gneissic Grundgebirge (p. 544). Graphic methods of representing rock-composition are illustrated. As an Italian detail, may we point out (p. 319) that gabbro, and not eufotide, is of Tuscan origin, the name of a Tuscan village having been utilised by von Buch? The treatment of sedimentary rocks is unusually adequate, and the photographic plates of thin sections are extremely clear and helpful. This compact volume is so full of fundamental concetti that it certainly should have been provided with an index. Le Rocce. Concetti e Nozioni di Petrografia. Prof. E. Artini By. Pp. xx + 636 + Tav. xxxii. (Milano: Ulrico Hoepli, 1919.) Price 18.50 lire.
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