A. Sieberg. Handbuch der Erdbebenkunde. Braunschweig, 1904, pp. 362.

Count F. de Montessus de Ballore. Les Tremblements de Terre, Géographie Séismologique. Paris, 1906, pp. 475; La Science Séismologique. Paris, 1907, pp. 579.

William Herbert Hobbs. Earthquakes, an Introduction to Seismic Geology. Appleton, New York, 1907, pp. 336.

C. G. Knott. The Physics of Earthquake Phenomena. Clarendon Press, Oxford, 1908, pp. 283.

E. Rudolph. Ueber Submarine Erdbeben und Eruptionen, Beiträge zur Geophysik, vol. 1, 1887, pp. 133-365; vol. 2, 1895, pp. 537-666; vol. 3, 1898, pp. 273-536.

Descriptive reports of some important earthquakes:—

C. E. Dutton. The Charleston Earthquake of August 31, 1886, 9th Ann. Rept. U. S. Geol. Surv., 1889, pp. 203-528.

B. Kotô. On the Cause of the Great Earthquake in Central Japan, 1891, Jour. Coll. Sci. Imp. Univ., Tokyo, Japan, vol. 5, 1893, pp. 295-353, pls. 28-35.

John Milne and W. K. Burton. The Great Earthquake of Central Japan. 1891, pp. 10, pls. 30.

R. D. Oldham. Report on the Great Earthquake of 12th June, 1897, Mem. Geol. Surv. India. Vol. 29, 1899, pp. 379, pls. 42.