Note 48 — Chapter VI
Reading edition
Quart. Journ. Geol. Soc. li. (1895), p. 183.
[49] Op. cit. lii. The metamorphism produced upon fragments of different kinds of foreign material enclosed within various igneous rocks has in recent years been studied in great detail by Professor Lacroix—Les Enclaves des Roches Volcaniques, Macon, 1893.