Note 111 — Chapter II
Reading edition
"All along this great line of volcanoes are to be found more or less palpable signs of upheaval and depression of land...; upraised coral-rock, exactly corresponding to that now forming in adjacent seas...; unaltered surfaces of the elevated reefs, with great masses of coral standing up in their natural position, and hundreds of shells, so fresh-looking that it was hard to believe that they had been more than a few years out of the water.
"The width of the volcanic belts is about 50 miles; but, for a space of 200 on each side of them, evidences of subterranean action are to be found in recently elevated coral rock or in barrier coral reefs, indicating recent submergence."—Cf. "Andamans," The Malay Archipelago, A. R. Wallace, pp. 5, 6.