sonal acquaintance with the
volcanoes of the south of Europe and the volcanic rocks of the British
Isles, was well equipped for undertaking a work of the kind; and in it
he supports the views of Lyell and Scrope regarding the mode of
formation of volcanic mountains.

9. Sir Archibald Geikie, F.R.S., in his elaborate monograph[12] on the
Tertiary Volcanic Rocks of the British Isles, has recorded his views
regarding the origin and succession of the plateau basalts and
associated rocks over the region extending from the north of Ireland to
the Inner Hebrides; and in dealing with these districts in the following
pages I have made extensive use of his observations and conclusions.

10. _Report published by the Royal Society on the Eruption of
Krakatoa_--drawn up by several authors (1885)--and the work on the same
subject by Chev. Verbeek, and published by the Government of the
Netherlands (1886). In these works all the phenomena connected with the
extraordinary eruptions of Krakatoa in 1883 are carefully noted and
scientifically discussed, and illustrated by maps and drawings.

11. _The Charleston Earthquake of August 31, 1886_, by Captain Clarence
Edward Dutton, U.S. Ordnance Corps. Ninth Annual Report of the United
States Geological Survey, 1887-88, with maps and illustrations.

12. Amongst other works which may be consulted with advantage is that of
Mr. T. Mellard Reade on _The Origin of Mountain Ranges_; the Rev. Osmond
Fisher's _Physics of the Earth_; Professor G. H. Darwin and Mr. C.
Davison on "The Internal Tension of the Earth's Crust," _Philosophical
Transactions of the Royal Society_, vol. 178; Mr. R. Mallet, "On the
Dynamics of Earthquakes," _Trans. Roy. Irish Academy_, vol. xxi.;
Professor O'Reilly's "Catalogues of Earthquakes," _Trans. Roy. Irish
Academy_, vol. xxviii. (1884 and 1888); and Mr. A. Ent. Gooch _On the
Causes of Volcanic Action_ (London, 1890). These and other authorities
will be referred to in the text.

[1] See Julius Schwarez _On the Failure of Geological Attempts made by
the Greeks_. (Edition 1888.)

[2]
"Vidi ego, quod fuerat quondam solidissima tellus,
Esse fretum. Vidi factas ex aequore terras:
Et procul a pelago conchae jacuere marinae;
Et vetus inventa est in montibus anchora sumnis.
Quodque fuit campus, vallem de cursus aquarum
Fecit; et eluvie mons est deductus in aequor:
Eque paludosa siccis humus aret arenis;
Quaeque sitim tulerant, stagnata palud