Note 1 — Chapter IV · THE SANTORIN GROUP.
Reading edition
Fuller details will be found in Daubeny's Volcanoes, chap. xviii., and Lyell's Principles of Geology, vol. ii. p. 65 (edition 1872). The bird's-eye view is taken from this latter work by kind permission of the publisher, Mr. J. Murray, as also the accompanying Ideal Section, Fig. 13.