( 3 66 ). 
End but a few Days, during which it decreafed at the 
place whence it ufed commonly to ifliie out. And here 
we were very agreeably furpriz’d, in feeing the Fire $ 
feveral times dart out from this place without any Noife, 
and rife up in the Air like a large Rocker. The following 
Days there was much the fame Spefracle \ for the Subter- 
raneous Thunder, after having made a great Noife, broke 
ouc from time to time with a Clap as loud as that of a 
Cannon, (which the Inhabitants were then fo far from be- 
ing afraid ot, that they took pleafure in viewing it) and 
was accompanied with a very beautiful and large Fire, 
which fhooting up in an inftant to a great Height, fell 
again on the Ifland, and illuminated it almoft all over. 
I cannot better reprefent the Figure that the Fire made 
in the Air, than by comparing it to a certain Artificial 
Fire- work I have feen in France, and is there called the 
Gerbe : But with this difference notwithlfanding, that 
this Fire, of which I am (peaking, rofe much higher, and 
was much larger, but not fo diftintft as that of theGer^. 
The Pleafure, however, that they had, in viewing 
thefe Natural Fires, which fo nearly rcfembled Artificial 
ones, was not a little difturbed by a Phenomenon which 
the Inhabitants believed to be an ill Omen to them $ for 
immediately after the Fire was darted out, as I have 
faid, in the manner of a Rocket, there appeared in the Air 
a Blaze, in the form of a long fiery Sword, which con- 
sinued fometime, without moving, over the Cattle of 
Ssaro, and afterwards difappeared. 
At that time alfo, the White Ittand and the Black liland, 
having increafed in length, in proportion as they rofe ia 
Height, united together $ and the End of the Black ifland, 
towards the South-Eaft; began not to increafe any more, 
either in Height or Length, while the End toward 
the Weft increafed very fenfibly to t^e Sight : Which 
makes me imagine, that the Mine of Sulphur being a t 
this- place, and the Fire not finding any Paffage out here. 
