to vaporize all this vast quantity of water, that one gentleman,
Professor Frankland,[4] suggested that the ocean must have been
rendered hot by the internal fires of the earth, and thus the water
was sent up in clouds to fall in ice and snow; but Sir John Lubbock
disposes of this theory by showing that the fauna of the seas during
the Glacial period possessed an Arctic character. We can not conceive
of Greenland shells and fish and animals thriving in an ocean nearly
at the boiling-point.

A writer in "The Popular Science Monthly"[5] says:

"These evidences of vast accumulations of ice and snow on the borders
of the Atlantic have led some theorists

[1. "Heat considered as a Mode of Motion," p. 192.

2. "Climate and Time," p. 74.

3. "Prehistoric Times," p. 401.

4. "Philosophical Magazine," 1864, p. 328.

5. July, 1876, p. 288.]

{p. 61}

to suppose that the Ice period was attended, if not in part caused,
by a far more abundant evaporation from the surface of the Atlantic
than takes place at present; and it has even been conjectured that
submarine volcanoes in the tropics might have loaded the atmosphere