ondensation of Several Gases into Liquids.’ 353 
chlorine, Nitrous Oxide, Cyanogen, Ammonia, agate 
Acid and Chlorine. Although these experiments are scarce- 
ly susceptible of abridgement, yet we are compelled, by 
ant of room, to leave out the few perin} the memoir 
which are less essential than the rest. 
- aed Acid. raple's We and 
ed onit miata itor Bis aeglp. si 
Liquid sulphurous acid is et d>dohwinaas 
and highly fluid. Its refractive power,: fice by com: 
paring it in water and other media, with water contained 
in a similar tube, appeared to be nearly equal to that of wa- 
ter, It does not solidify or become adhesive at a tempe- 
rature of 0° F. When a tube containing it was opened, 
the contents did not rush out as with ex , but a por- 
tion of the liquid evaporated rapidly, cooling another por- 
tion pisos ‘much as to leave it ia the fluid state at common ba- 
ric pressure. It was however rapidly dissipated, not 
pedis visible fumes, but producing the odour of pure 
sulphurous acid, -and leaving 
it. 
“To prove in an unexceptionable manner that the fluid 
was sulphurous acid, some sulpburous acid gas was 
carefully prepared over pute je and a long tube 
dry, and closed atone ; exhausted, was’ filled 
with it; more sulphurous acid wantbedvtowtt in by acon- 
densing syringe, nT there were three or four atmospheres ; 
the tube remained perfectly clear and abt but on cooling 
one end to 0°, the fluid sulphurous acid condensed, and 
Vor. ViI.—No. 2. 45 
