Di ac lll 
ae) Sulphurous Acid. ~ 195: 
had been watered with the solu- 
terface of this fluid at distant periods, are consider- 
ell sufficient Its action is ascribed by M. Lematre-Lisancourt, 
who communicates the account, to what he calls electro-or- 
ganic influence. When applied to animal organization, it is 
said to arrest gangrene and ulcers, and to favour the cica- 
trization of wounds.—ldem, Feb. 1824. 
- Diamond.—\t appears, from specimens which now 
oii in several European cabinets, that the veritable gangue 
of the Brazilian diamond is a brown oxide of iron.— Idem 
33. Atmospheric tides.—It appears, agreeably to the dis- 
coveries of Colonel Wright, that in the neighbourhood of 
the equator the diurnal rise and fall of the Barometer (twice 
in twenty-four hours) are so regular that it might almost 
serve as an instrument for measuring time. Various other 
philosophers,particularly Godin, Bouguer, Lacondamine, and 
Humboldt. had noticed this diurnal movement long before.-— 
Idem, Mars 1824. 
- Liquefied sulphurous acid.—M. Bussy states that he 
étaine this acid ina liquid state exempt from water, a 
passing the gas, first through a tube filled with fragments 
meited muriate of lime, into a matras surrounded with two 
parts of pounded ice, and one of marine salt. The gas is 
liquefied completely under the simple pressure of the atmos- 
phere,and at a temperature not below eighteen or twenty de- 
grees centigrade. Thus obtained,it is a colourless,transparent 
and very volatile fluid, heavier than water, It boils.at ten de- 
grees centigrade, but may be preserved liquid, without extra- 
ordinary pressure, because the portion which volatilizes re- 
duces the temperature far below the point of ebullition, 
Poured on the hand, it produces intense cold, and volatilizes 
completely. Poured into water, a portion flies off, and an- 
other dissolves and at length collects at the bottont; i in or 
like a heavy oil. If it then be touched with a rod, it is 
reduced to vapour, and occasions a kind of ebnilition ; hee 
