A. Lindenkohl. Notes on the Submarine Channel of the Hudson River, etc., Am. Jour. Sci. (3), vol. 41, 1891, pp. 489-499, pl. 18.

J. W. Spencer. The Submarine Great Cañon of the Hudson River, ibid. (4), vol. 19, 1905, pp. 1-15; Submarine Valleys off the American Coast and in the North Atlantic, Bull. Geol. Soc. Am., vol. 14, 1903, pp. 207-226, pls. 19-20.

F. Nansen. The Bathymetrical Features of the North Polar Sea, with a Discussion of the Continental Shelves and Previous Oscillations of Shore Line, Norwegian North Polar Expedition, vol. 4, 1904, pp. 99-231, pl. 1.

W. v. Knebel. Höhlenkunde, etc., Braunschweig, 1906, pp. 175-177 (the blue grotto of Capri).

Oscillation of movement:—

C. Lyell. Principles of Geology, vol. 2, pp. 164-176 (Temple of Jupiter Serapis).

E. Ray Lankester. Extinct Animals, New York, 1905, pp. 31-42.

H. W. Fairbanks. Oscillations of the Coast of California during the Pliocene and Pleistocene, Am. Geol., vol. 20, 1897, pp. 213-245.

G. H. Stone. Mon. 34, U. S. Geol. Surv., 1899, pp. 56-58, pl. 2.