g2 llPABl. 
Near the mouth of the volcano is a small cavern, a 
jection above which secures it from the entrance of , 
ignited stones. From this cavern Spallanzani was enabl^ 
to look down into the very bowels of the volcano. . 
describes the edges of the crater as of a circular forna, 
not more than 340 feet in circumference, the internal si ^ 
contracting as they descend, and assuming the shape oi 
truncated inverted cone. The crater itself, to a cer »‘ 
height, is filled with a liquid red-hot matter, resembhW 
melted brass. Thi.s is the fluid lava, which appears to 
ao-itated by two distinct motions, the one intestine wfia 
iTg and tumultuous, and the other that by which it is i^ 
aetled upward. This liquid matter is raised, sometimes vv _ 
more, and sometimes with less rapidity, within the c c ^ 
and when it has reached within twenty-five or thirty feet ^ 
the upper edge, a sound is heard not unlike a shot clap^_^^ 
thunder, while at the same moment a portion of the 
separated into a thousand pieces, is thrown up with n 
scrtbable swiftness, accompanied by a copious eruption 
smoke, ashes, and sand. A few moments before *e rcp 
die superficies of the lava is inflated and covered with 
bubbles, some of which are several feet in diameter : 
the bursting of these the detonation and fie^ 
place. After the explosion, the lava within 
Lks, but soon rises again as before, and «ew bub 
sinks, but soon rises again as oeiore, ..na 
appear, which again burst and produce new ^^i 
-JA _ 1 lirtU nr no sound : but 
app63t» wnicn dga i» . »• t * a Ki^r 
When the lava sinks, it gives little or no sound ; bm 
it rises, and particularly when it begins to be inflated ^ 
bubbles, it is accompanied by a noise similar, in 
to the difterence of magnitude, to that of liquor bo 
vehemently in a cauldron. 
UPARI. 
This island, which has given name to the whole 
4eserving of notice on account of its celebrated jjoii 
Thev are the only vestiges of subterraneous conflag^ ^ 
* • * i:«. 4.A xTToot r\f tKn 
They are tne omy vesuges ^ „,v 
now remaining, and lie to the west of the city, 
Mimmit of a mountain of considerable elevation, ^ 
iSTtB BKI.I.A STUFB-. MOUNTAIN OF StOVB^ 
consist of five excavations, m the form of gt»«^V 
■ them liave been abandoned on account of ” 
two of 
