Gemmellaro on the Eruptions of Etna, &c.. 323 
In 1809, 37 earthquakes, vz., in January, February, March, 
April, May, September, and December. The most sensible 
were those of the 27th March, on which day the mountain sent 
forth an eruption on its west side which lasted 13 days, having 
damaged a part of the Bosco di Castiglione, and extended as 
far as Linguagrossa. It smoked 152 days, flamed 3 days, and 
detonated 11 days. Little thunder. A waterspout on the 6th 
October, caused a storm in the vicinity of Belgrasso and Nico- 
losi. Lowest temperature 43°, highest 97°. 
In 1810, 4 earthquakes, viz., on the night of the 16th and 
day of the 17th of February, the first of which was preceded by 
a rumbling noise, sensible throughout Sicily, in Malta, on part 
of the African coast, and in Cyprus; but no eruption of the 
mountain occurred. It smoked 21 days, flamed 6. Little 
thunder. Lowest temperature 38°, highest 99°. 
In 1811, numerous slight earthquakes took place, but one on 
27th March was sensible every where in Sicily. After a rumbling 
noise had been heard for two days, the mountain opened its 
east side on the 27th October, and eructed a current of lava, 
which flowed into the Valley del Bue, which still continues, 
(in January, 1812). About 20 thunder showers have occurred 
this year. Lowest temperature 41°, highest 92°. 
In 1812, no earthquakes. Etna continued to hold its east 
side open, by which an enormous flow of lava issued, and a 
hill, or mountain, was formed, called at Catania Mount St. 
Simon, until the 24th April, after which period the mountain 
smoked a little during 6 days. No thunder. Lowest tempe- 
rature 37°, highest 93°. 
In 1813, two earthquakes, v2z., on the 3d and 13th March. 
The mountain smoked 28 days. On the 30th June and 5th 
August smoke was emited from the new mount St. Simon. In 
a storm on the 16th of January, a strong scent of ammonia was 
perceived at about three hours after sunset. And in another 
storm on the 15th March, the rain had an orange colour, was 
acrid, and yielded an orange-coloured precipitate. It fell dur- 
ing a south wind, after two days of cloudy weather. The 
quantity of rain fallen by the pluviometer was unusually large 
Y¥ 2 
