Note 1 — Chapter I · THE ULTIMATE CAUSE OF VOLCANIC ACTION.
Reading edition
R. D. M. Verbeek, Krakatau, p. 105 (1886); also, J. Milne, The Great Earthquake of Japan, 1891.
Reading edition
R. D. M. Verbeek, Krakatau, p. 105 (1886); also, J. Milne, The Great Earthquake of Japan, 1891.