Note 318 — Chapter XVI · THE VOLCANOES OF THE OLD RED SANDSTONE
Reading edition
"On the Old Red Sandstone of the South of Scotland," Quart. Journ. Geol. Soc. xvi. (1860), p. 312.
[319] "On the Chronology of the Trap-Rocks of Scotland," Trans. Roy. Soc. Edin. vol. xxii. (1861), p. 63.
[320] Article "Geology," in Ninth Edition of the Encyclopædia Britannica, vol. x. (1879), p. 343. Reprinted in my Text-Book of Geology, of which the first edition appeared in 1882.
[321] "Presidential Address to the Geological Society," Quart. Journ. Geol. Soc. vol. xlviii. (1892).