Fig. 63.

Map of Santorin in the Grecian Archipelago, from a Survey in 1848, by Captain Graves, R. N.
The soundings are given in fathoms.

A, Shoal formed by submarine volcanic eruption in 1650.
B, Northern entrance.
C, Mansell's Rock.
D, Mount St. Elias, 1887 feet high.

Fig. 64.

Section of Santorin, in a N. E. and S. W. direction, from Thera through the Kaimenia to Aspronisi.

Fig. 65.