Note 100 — Chapter XI · THE CAMBRIAN VOLCANOES OF NORTH WALES, THE MALVERN HILLS AND WARWICKSHIRE
Reading edition
In an excellent memoir read before the Geological Society in 1888, with the main conclusions of which I agree.
[101] Quart. Journ. Geol. Soc. vol. xliv. p. 271. For subsequent papers by Mr. Blake, see op. cit. vols. xlviii. (1892) p. 243, xlix. (1893) p. 441.