Note 30 — OF ROBERT LOUIS STEVENSON (continued 3)

As to this peculiar intermittency of the Samoan streams, full in their upper course, but below in many places dry or lost, compare the late Lord Pembroke’s South Sea Bubbles, p. 212:—“One odd thing connected with these ravines is the fact that the higher you go the more water you find. Unlike the Thames, which begins, I believe, in half a mile of dusty lane, and expands in its brimming breadth as it approaches the sea, a Samoan stream begins in bubbling plenty and ends in utter drought a mile or two from the salt water. Gradually as you ascend you become more and more hopeful; moist patches of sand appear here and there, then tiny pools that a fallen leaf might cover, then larger ones with little thread-like runs of water between them; larger and larger, till at last you reach some hard ledge of trap, over which a glorious stream gurgles and splashes into a pool ample enough for the bath of an elephant.”