414 Scientific Intelligence. 
C4oH2sN20s, which is precisely double the formula of Liebig. The 
nitrate is represented by the formula CaoH21N2Oa, . NOs ; the two 
sulphates are Cao H24N202, HO.SOs and C1oH24N204, HO.SOs+- 
eq. of hydrogen is replaced by 1 eq. of ethyl; iodid of methyl pro- 
duces a similar. iodid of methyl-quinine; both these compounds are 
powerful bases. ‘The author concludes that ethyl-quinine belongs to | 
Hofmann’s fourth class of bases and corresponds to ammonium NHs. 
Quinine is itself a nitrid base or an ammonia, and contains in its mole- 
cule 3 compound radicals replacing hydrogen. 
Artificial production of oil of cinnamon.—Srrecxer shewed some 
years since that styrone is the alcohol of cinnamic acid; he now finds 
that it may be readily transformed into its aldehyd by the action of alr 
and platinum black. This aldehyd is pure oil of cinnamon. 
Artificial production of taurine.—After several unsuccessful at- 
heating isethionate of ammonia to a temperature of 230°, until the salt 
has lost 11 per cent. of its weight. The reaction is represented by the 
equation 
NH10.CzHs0.280s = CaHzNOcS2 + 2HO. 
The fused mass dissolved in water, precipitated by alcohol and then 
redissolved in water, gave large crystals identical with the taurine 
ee from the bile—Comptes Rendus, xxxix, 49, July, 1854. 
? 
ontributions to the chemical history of Glucina.—WEEREN has _ 
published an investigation of glucina, which, although simply introduc- 
separated from alumina either b ns of carbonate of ammonia, 
u x 
the hydrate of glucina to be G2O03 +-3HO, though it is very readily 
decomposed, and loses a portion of its water at 110°, which renders Its 
analysis very difficult. The numerous analyses of the carbonates of 
glucina lead to very improbable formulas, apparently either from thet 
instability, or because the carbonates are mechanically mixed W! 
S 
water between 100° and 110° C. but retains the 12th till a much higher 
temperature. The author has redetermined the equivalent of glucina 
re finds as a mean of AY 
eterminations the number 157-64, if we consider the glucina as | 
or 472-90 if we consider it G20s. He: prefers, however, the mear 
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