C 578 ] 
in all probability, it muft have far exceeded all that 
has been thrown out of /Etna and Vefuvius together 
within the laft two thoufand years. This may ierve 
to iatisfy us, that the fire which occafoned all this, 
muft have fubfifted for many years, not to fay ages, 
and this without any communication with the exter- 
nal air. It is worth obferving, that * feveral in- 
ftances of this kind have happened amongft the 
Azores. There are befides many marks of fubter- 
raneous fires about thefe iflands, feveral places lend- 
ing up fmoke or flames. Thefe iflands are alio lub- 
jedt to violent and frequent earthquakes. 
30. We have more inftances to the fame purpofe, 
near the illand of Santerini in tlie Archipelago, where 
there have been feveral little iflands railed out of the 
fea by a fubmarine volcano. The eruption of one of 
thefe in the year 1708, with all the circumftances 
that attended it, we have a very good account of in 
the t Philofophical Tranfa&ions. It was raifed in a 
place where the fea had been formerly 100 fathoms 
deep, and was attended with earthquakes before it 
Ihewgd itfelf above water, as well as after. It is re- 
ported, that the illand of Santerini itfelf was origi- 
nally raifed out of the fea in the fame manner ; but, 
be that as it will, we have certain accounts of new 
iflands raifed there, or additions made to the old ones, 
from time to time, for above ipoo years backwards, 
and there have always been earthquakes at the time 
of thefe eruptions. 
* See Hift. and Philof. of Earthquakes, under the titles Azores, 
Iflands raifed, &c. , 
t See N° 314, 317, and 332. or vol. v. part 11. p. 190. Jones s 
4 
