400' 
Scitntific Intelligence « 
the sea, it agitated and raised the water to the height of twenty 
feet as it advanced, the spray in its beautiful whiteness strongly 
resembling a drift of snow. A very short time previous to the ap- 
pearance of this phenomenon, there had been lightning with some 
thunder, accompanied with heavy showers of rain, and the wind, 
which was south-west, was suddenly changed, preceded by the 
whirlwind, to the westward 
24. Extraordinary depression of the Barometer in February 
1823. — On the 2d of February 1823, at 1 1 h 34/ a. m., M. Flau- 
guergues observed the barometer at Viviers to be so low as 26 
inches 7.20 lines French measure, which is 3.23 lines lower than 
he observed it on the 25th December 1821. M. Nell de Breaute, 
at La Chapelle near Dieppe, observed it at the lowest, on 
the same day, at 4 h 30' in the morning, when it was 714.73 mil- 
limetres. M. DTIombres Firmas observed it at Alais, to be at 
the lowest, 26 inches 4 lines, on the 2d February, at 10 1 * 15' 
a. m., or three lines lower than on the 25th December 182L 
At Paris, the barometer stood at 722.34 millimetres, on the 2d 
February, at noon.— See Bibl. Univers ., Juin 1823, p. 99. ; and 
Juillet, p. 170 and 178. 
II. CHEMISTRY. 
25. Observations on the Two New Fluids in Minerals 
Although we are not in the habit of criticising the speculations 
of our fellow-labourers in science, yet there is a passage in the last 
number of the Journal of Science of the Royal Institution which 
the interests of science require us to notice. 
After reprinting the notice respecting the two new fluids, 
published in p. 400. of our last number, the learned Editor of 
the J ournal above quoted adds the following observations. 
“ We have seen a moat curious and satisfactory specimen of 
amethyst-quartz, containing the fluid above described by Dr 
Brewster, in the collection of Thomas Allan, Esq. of Edin- 
burgh. It exhibits three distinct oblong cavities, which, when 
the crystal is very slightly warmed, are, to all appearance, emp- 
ty ; but, upon cooling it by immersion in water, or by holding it 
against any cold substance, a portion of liquid is immediately 
* A fuller account of this phenomenon was sent to us by Mr Dunn, but unfor- 
tunately it has not yet reached us.— Ed. 
