Corals and coral islands.

168

CORALS AND CORAL ISLANDS.

Swain's and Jarvis's Islands (figs. 3 and 4), are of still
smaller size, and have no lagoon. The former is densely
covered with foliage, while the surface of the latter is sandy.
Both islands are a little depressed about the centre, a fact
indicating that there was formerly a lagoon.
1 2
TAIARA. HENUAKE, OR HONDEN.
Fakaafo, or Bowditch (fig. 5), 200 miles north of the
Navigator Islands, is the type of a large part of coral islands.
The bank of reef has only here and there emerged from the

3
JARVISJS ISLAND.
4
SWAI'S ISLAND''
~ y.,..:..~,.......,..
SWAIN S ISLAND..N:".X i ""....:
':'..' "".,:-..* / 5:;,,:.,.
-~ i'[.
'':' O.,'.
AO O
FAAF, OR. BODTS'SILN.~

waves and become verdant; in other portions the reef is of
the usual height,-that is, near low-tide level,-excepting a
few spots elevated a little by the accumulation of sand.