Intelligence and Miscellaneous Articles. 465 



The Analysis of Parilline by the same apparatus gives 



1st. 2nd. 3rd. 



Carbon 62-22 62'99 6207 



Hydrogen 8'96 876 8'40 



Oxygen 28*82 28'25 29\53 



100- 100- 100- 



Which experiments denote the atom of salseparine to consist of 

 carbon 8 atoms, hydrogen 15 atoms, and oxygen 3 atoms. From 

 these facts M Poggiale arrives at the following conclusions: That 

 M.Palotta discovered the active principle of sarsaparilla; that smila- 

 cine, parillinic acid, and salseparine are identical with the parilline of 

 M. Palotta, but procured by different methods ; that the properties 

 of these four substances are the same ; and that the pith of sarsapa- 

 rilla as well as the bark contains salseparine. — Journal de Pharmacies 

 October 1834. 



PREPARATION OF CYANURET OF POTASSIUM. 



According to M. Robiquet, when ferrocyanuret of potassium is 

 calcined in a retort, there are formed cyanuret of potassium and 

 quadricarburet of iron ; and when the retort is carefully broken, a 

 certain quantity of perfectly pure fused cyanuret of potassium is ob- 

 tained, which is quite fit for medicinal use. — Ibid. Sept. 1834. 



COMPOSITION OF L1THIC ACID. 



M. Liebig observes that lithic acid is unquestionably one of the 

 most remarkable organic acids, both with respect to its composition 

 and the effects which it produces in certain diseases, such as gra- 

 vel, urinary calculi, and gouty concretions. 



The composition of this acid has been variously stated, and no 

 two analyses agree : these differences arise from the circumstance 

 of chemists not having directly determined the proportion of carbon 

 which the acid contains, and are consequently deprived of the con- 

 troul in determining the azote which M. Liebig conceives that his 

 apparatus admits of. 



Third Series. Vol. 5. No. 30. Dec. 1834. 3 O 



