Note 166 — Chapter XXXIV · THE SYSTEM OF DYKES IN THE TERTIARY VOLCANIC SERIES
Reading edition
Quart. Journ. Geol. Soc. vol. xl. (1884).
[167] Op. cit. vol. xxxix. (1883) p. 444 (basalt-glass); xlii. (1886) p. 49, where Professor Judd discusses the gabbros, dolerites and basalts as a whole.