338 Intelligence and Miscellanies. 



Hydrates formed of 



2 lime and 1 water, absorb 1-2 chlorine 



2 -2 1 do. 



2 3 1 do. 



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- 

 guards apply heat to this solution, the two remaining thirds 

 of the chlorine cease also to be in the condition of chloride 

 of lime, by disengaging 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. — Idem. 



37. AlcoJiol. — By distilling alcohol of 98 1-2 per cent, by 

 a gentle heat, and receiving the products of the distillation 

 successively in small flasks, numbered and of equal size, 

 it was found that 



Density. 



The 1st portion which passed had 0.7972 or 97,86 per cent 



2d " " 0.7970 



3d " " 0.7969 



4th " " 0.7966 



5th " " 0.7965 



6th " " 0.7964 



7th " " 0.7962 



8th " " 0.7959 



Mean, 98.32 per cent. 



It thus clearly appears that absolute alcohol is less volatile 

 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 proportion to its specific levity or 

 its anhydrous condition. — Ide:m. 



38. Rapidity of the Circulation of the Blood. — A solution 

 of ferruretted hydrocyanate of Potash, introduced into the 

 jugular vein of the horse, entered the circulation and arrived 



