[96] T. G. Bonney, "The parent rock of the diamond in S. Africa," Geol. Mag. (1899), 309.

[97] R. Lepsius, "Geologie von Deutschland," 2ter. Teil (1903), 146 and 169; H. Credner, "Die Genesis des sächsischen Granulitgebirges," Renuntiations-programm (1906).

[98] Harker, "Igneous Rocks of Skye," Mem. Geol. Surv. Scotland (1904), 115.

[99] Lévy, "Excursion à Aydat," Bull. Soc. géol. France (1883), 916; "Granite de Flamanville," Bull. Carte géol. France 5 (1893), 337.

[100] F. D. Adams, "Haliburton and Bancroft areas," Mem. Geol. Surv. Canada, No. 6 (1910), 120.

[101] G. A. J. Cole, "Metamorphic rocks in E. Tyrone and S. Donegal," Trans. R. I. Acad., 31 (1900), 453.

[102] W. B. Wright and E. B. Bailey, "Geology of Colonsay," Mem. Geol. Surv. Scotland (1911), 28.

[103] Judd, "Statical and dynamical metamorphism," Geol. Mag. (1889), 246.

[104] Scrope, op. cit., [ref. 63], p. 234.

[105] Darwin, op. cit., [ref. 78], chap. VII.