ELEVATIONS IN CORAL PACIFIC REGIONS. ate 
Enderbury’s, in 3° 8’ 8., 174° 14’ W., is eighteen feet 
high. It has probably experienced some elevation. But the 
height of the tides is such in the seas as to give the beach and 
drift sands much greater height than they have in the Paumo- 
tus. Birnie’s Island is a small bank of coral, only six feet 
above the sea, according to Wilkes (Narr., V. 4). 
Gardner's, Hulls, Sydney and Newmarket were visited 
by the Wilkes Expedition. No satisfactory evidences of ele- 
vation were observed on the first three. Newmarket is stated 
by Captain Wilkes to have a height of twenty-five feet, which 
would indicate an elevation of six or eight feet. 
h. Sandwich or Hawaian Islands.—Oahu affords decisive 
proof of an elevation of twenty-five or thirty feet. There is an 
impression at Honolulu, derived from a supposed increasing 
height in the reef off the harbor, that the island is slowly ris- 
ing. Upon this point we have nothing satisfactory. The pres- 
ent height of the reef is not sufficiently above the level to which 
it might be raised by the tides, to render it certain, from this. 
kind of evidence, that the suspected elevation is in progress. 
Kauaz presents us with no evidence that the island, at the 
present time, is at a higher level than when the coral reefs be- 
gun ; or, at the most, no elevation is indicated beyond a foot or 
two. The drift sand-rock of Koloa appears to be a proof of 
elevation, from its resemblance to that of Northern Oahu; but 
if so, there must have been a subsidence since, as it now forms 
a cliff on the shore that is gradually wearing away. 
Molokai, according to information from the Rev. Mr. An- 
drews, has coral upon its declivities three hundred feet above 
ie sea, We, Karbon 
Mr. Andrews, in his communication, informed the author 
that the coral occurs ‘“‘ upon the acclivity of the eastern or high- 
est part of the island, over a surface of more than twenty or 
