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4th year of the cxxxv Olympiad, 237 years before 
the Chriftian asra, the ihand of 'Fhcra "(now Santorini) 
and Therefia were formed by explofion j and, 130 
years later, the ifland Hiera (now called the great 
Kammeni) rofe up. Strabo delcribes the birth of this 
illand in thefe words: “ In the middle fpace between 
“ Thera and Therafia flames biirfl: out of thefea for 
“ four days, which, by degrees, throwing up great 
mafles, as if they had been raifed by machines, 
they formed an illand of twelve fladia in circuit.” 
And Juflin fays of the fame ifland, Rodem anno inter 
infulas 'Theramenem et T^hercjiam^ medio utriufque ripce 
et maris fpatio, teru^e motus fuit : in quo^ cum admira^ 
tione na^cigantium^ repcnte ex profundo cum calidis 
aquis Lifula e?nerjit, 
Pliny mentions alfo the formation of Afpronifl, or 
the White Ifland, by explofion, in the time of 
Vefpafian. It is known, likewife, that in the year 
1628, one of the iflands of the Azores, near the 
ifland of St. Michael, rofe up from the bottom of 
the fea, which was in that place 160 fathoms deep; 
and that this ifland, which w'as raifed in fifteen days, 
is three leagues long, a league and a half broad, and 
rifes three hundred and fixty feet above water. 
Father Goree, in his account of the formation of 
the new ifland in the Archipelago, mentions two dif- 
tindl matters that entered into the compofition of this 
ifland, the one black, the other white. Afpronifi, 
probably from its very name, is compofed of the 
white matter, which if, upon examination, fliould 
prove to be a tufa^ as I flrongly fufpedl, I fliould 
think myfelf flill more grounded in my conjedures ; 
though I mufl: confefs, as it is, I have fcarcely a 
doubt 
