Volcanic Eruptions of Hawaii. 235 
Coprolites.—Of numerous specimens of these remains, there 
is one of unusual dimensions. It is six anda half inches in length 
and three inches in diameter. It presents indications of having 
been moulded upon a spiral membrane; its fractured surface ex- 
hibits fragments of bone and something resembling the scales of 
fishes. The color of the fractured surface is of a reddish brown. 
Arr. XXII.—On the Volcanic Eruptions of Hawaii ; by James 
D, Dana—.Continued from vol. ix, p. 364. 
n a former article, a historical account was given of the erup- 
tions of Kilauea, the great pit-crater on the flanks ps Mount Loa, 
situated at a height of about 4000 feet above the sea. ‘The fol- 
Jowing pages contain what information we have olla respect- . 
ing the summit eruptions of Mount Loa.* The crater isa deep 
pit in the very summit of the mountain dome, and is called b 
the natives Mokua-weo-weo.t It has nearly an ellipueal: Peure, ‘ 
as shown in the annexed cut, with — 
its - andlor 13,000. and 8000 
feet respectively, the longer lying . Za 
in a north-by-west and..sduth-.4-~§ —_ = 
by-east direction. . But the. dee on 
part of the crater is nearly circa rt, 
lar, and has the breadth. of- es, Te 
smaller diameter, the nee re. 
and southern portions being shal 
ow. he walls, through a con- ~~ a4 —— 
siderable portion of their eireuit, =< —*) ae To 
are abrupt or even vertical, and are : 4, aaRee x 
as 4 
stratified in structure like the eee “ 
of Kilanea; on the west side the ; * a 
height was ‘found by Henry Eld, “we ges 
+; to be seven hundred and eigh- - ‘s 
ie ae ' 
4 a 
% 
p a 
examingde by Captain. Wilkes abd: i dee” A 
the officers of the Vincennes, consisted of solid da 1a vat throtigh 
which there were severe fissures and fumarolég ,emittin stéam 
and doit Vapors ‘in. [atge. vi : Xu s wore UB 
ia . 
e iroin Wilke 
‘of it if given in n olen ; 
ray Pet tpi 
