388 Intelligence and Miscellanes. 
Hydrates formed of 
2 lime and 1 water, absorb = aoe 
2 2 
2 3 wa 
2 4 1 do. 
The second only of these chlorides should therefore be em- 
ployed in the arts, as pointed out before by Wetter. The au- 
thor has further observed that when the action takes place 
in the cold, the chlorine remains entirely in the state of 
chloride of oxide, but with heat, one third or more of chlo- 
rine cease to react as chloride of oxide; and if we after- 
gto apply heat to — solution, the two remaining thirds 
the chlorine cease also to be in the condition of chloride 
of lime, by deeming an equal volume of oxygen. All 
the chlorine of the chloride of lime prepared in the cold, un- 
dergoes a like modification, by disengaging the half of its 
volume of oxygen, and by transforming itself into chloride 
of calcium, and chlorate of lime.—Ide 
37. Alcohol._—By distilling alcohol of 98 1-2 per cent. by 
ntle heat, and receiving the ucts of the distillation 
successively in small flasks, numbered and of equal size, 
it was found that 
Density. 
The ist portion which passed had 0.7972 or 97.86 per cent. 
2d e! u 0.7970 
3d S 35 0.7969 
Ath e ds 0.7966 
5th zi oy 0.7965 
6th. os : 0.7964 
7th 2 < 0.7962 
Sth : " 0. cogs 
Mea 
Tt thus clearly ies that absolute sed arbors is se volte 
than that which contains a portion of water, and that when 
the degree of 97 per cent. is passed, the weakest alcohol 
goes off first, and the strongest last, consequently the vol- 
atility of alcohol is not in eon to its specific levity or 
its nee condition.—ldem 
8. Rapidily of the Circulation of ithe Blood.—A solution 
of Terruretted hydrocyanate of Potash, introduced into the 
vein of the horse, entered the circulation and arrived 
