of the Organic Alkaloids. 



51 



Carbon, 



Hydrogen, 



Nitrogen, 



Oxygen, 



Sulphur, 



61-35 

 6-72 



8-30 

 15-13 



8-50 



100-00 



and the author concludes that quinine contains either 38 of 

 19 atoms of carbon, and 24 or 12 atoms of hydrogen, and the 

 formula he calculated, C 38 H 24 N 2 4 Ho S 2 2 , agreed per- 

 fectly with his results. That which I have given, however, for 

 quinine, is borne out by the researches of Strecker, before 

 mentioned, and is now allowed to be the correct expression for 

 the base. 



Hyposulphite of Cinchonine is so readily obtained by 

 double decomposition, owing to its sparing solubility, that I at 

 once prepared by this means a sufficiency of the salt for ana- 

 lysis, though it is also formed by the other method. It is a 

 very fine salt, crystallizing from water left at rest, in colour- 

 less, transparent, four-sided prisms, of large size. It dissolves 

 in hot water with ease, but requires 205 parts of this men- 

 struum when cold. It is perfectly neutral, and gave the fol- 

 lowing results on analysis : — 



4-323 grains, dried at 212°, gave 

 10*300 ... carbonic acid, and 

 2*745 . . . water. 

 4-860 ... dried at 212°, gave, by 

 3158 ... sulphate of baryta, 





Carbon, 



Experiment. 

 . « 64-98 



Calculation. 







6498 



0, 8 



228 





Hydrogen 



, • 7-05 



6-55 



H 



23 





Nitrogen, 



• . 



7-97 



N. 



28 





Oxygen, 



. 



11-39 



o 5 



40 





Sulphur, 



. . 8-91 



9-11 



s 2 



32 





100-00 



100-00 



351 



which 



agree with the formula 









C 33 H 22 N 2 2 HO S 2 2 



The crystals contain one atom more of water. 



4'985 grains, crystals, lost at 212 c 

 0-120 ... water. 



D2 



