Text-Book of Petrology, Vol. 6: Containing a Summary of the Modern Theories of Petrogenesis, a Description of the Rock-Forming Minerals, and a ... as Illustrated by the British Isles

Excerpt from Text-Book of Petrology, Vol. 6: Containing a Summary of the Modern Theories of Petrogenesis, a Description of the Rock-Forming Minerals, and a Synopsis of the Chief Types of the Igneous Rocks and Their Distribution as Illustrated by the British Isles

In this edition, besides the correction of a few typographical errors and of some misspellings of place-names, there are several small improvements suggested by friends. Especially to be noted is a simplification, but without alteration of principle, of the tables of classification of the Plutonic and of the Volcanic Rocks (on pages 153 and 248). A new map, showing the volcanic area of Glencoe and the Etive granite complex, has also been added (on page 371) by kind permission of Messrs. Clough, Maufe and Bailey, and of the Council of the Geological Society. Mr. Pringle has revised the Index.

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