[181] An instructive parallel is exhibited by the "Great Basin" of North America. See the remarkable memoir on "Lake Bonneville" by Mr. G. K. Gilbert, of the United States Geological Survey, just published.
[182] It is true that earthquakes are common enough, but they are incompetent to produce such changes as those which have taken place.
[183] See Teller, Geologische Beschreibung des sud-östlichen Thessalien: Denkschriften d. Akademie der Wissenschaften, Wien, Bd. xl. p. 199.
[184] Dr. Langenbeck, Die Theorien über die Entstehung der Korallen-Inseln und Korallen-Riffe (p. 13), 1890.