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POPULAR SCIENCE REVIEW. 
away the base of a conical bill on wbicb were tbe bouses of a 
summer bathing-establishment. On tbe 21st there was a 
small earthquake shock, and on tbe 22nd, at half-past 
4 a.m., another considerable eruption from the new island of 
Aphroessa. This was repeated on the 23rd, and again on the 
24th. The last eruption of stones and scoriae lasted about 
two minutes in full force, and nearly an hour with diminishing 
intensity. 
A long and considerable eruption, accompanied by a slight 
earthquake, occurred in the evening of the 26th, and earlier 
in the afternoon George island (now converted into a promon- 
tory) had visibly and rapidly enlarged towards the southern 
extremity. The increase was estimated as amounting to 
twelve metres in length in a quarter of an hour. On the 28th 
there was an eruption, followed by the sinking in of the upper 
part of the promontory, and on the succeeding day the sea 
was greatly disturbed between Aphroessa and Sew Kaimeni. 
During the last days of February and the beginning of 
March the temperature of the sea, which had been very high 
(above 37°. 5 C.), was reduced to 22°. 5 C. at the extremity of 
the promontory. It was also observed by the captain of a 
vessel, who had approached in a boat, that there was no fissure 
on the promontory. For several days in the early part of 
March there was nothing special to remark upon, the phe- 
nomena continuing as before, occasional eruptions alternating 
with intervals of repose. 
On the 8th of March M. Fouque arrived at Santorin. This 
gentleman is a • French geological chemist, who had been 
commissioned to visit the eruption of Etna in 1865, and who 
had lived for weeks on the mountain on that occasion 
with Professor Sylvestri, of Catania, studying the various 
phenomena. M. Fouque found both the promontory George 
and the island of Aphroessa to consist of a black, glassy, 
felspathic lava, identical with some of the old Etna lavas, and 
those which form the compact beds of Santorin. It resembles 
an imperfect obsidian. Crystals of glassy felspar were 
abundant in it. There was at that time (8th March) no true 
crater, and little solidified 'lava had been projected. The 
quantity of erupted scoriae and ashes had been very small, and 
thus no cones of eruption of the ordinary kind had been formed. 
The gaseous emanations, however, were remarkable, as they 
included within a very small area all those varieties generally 
spread over a large space in other volcanos. Hear the place 
where the lava is incandescent the blocks were covered with a 
thin coating of common salt.* Not far off, stifling odours of 
# I have observed common salt both in Etna and Vesuvius, on and within 
blocks of erupted and projected lava. 
