112 Decomposition of Muriaic nj Tin. 



pvirposes or private emolument, must in their operatiort 

 produce results diflercnt from what arc previously supposed, 

 and will become the seeds of events of incalculable extent 

 and infiuetvce. 



XXIII. ISluriatic Solution of Tin in part decomposed into 

 mvtaUic crystaUized Tin. By JSl. Bucholz*. 



XT is some time ago since, in the view of preparing the 

 muriate of tin, I treated seven pounds of the finest English 

 tea with fifteen pounds f of muriatic acid weighing 1-120. 

 At the approach of night there still remained from 2 to 2-J- 

 pounds of tin undissolved. The next day the matter was 

 yet luke-warm, and the liquid had the consistency of syrup. 

 I poured gently above it a pound of water J, which swam 

 npon the solution. At the end of an hour, while I exa- 

 mined the mixture, I observed with astonishment that the 

 undissolved tin, and particularly its running particles, were 

 covered with a quantity of lances, needles, blades, &c. of 

 metallic crvstallized tin, in length from a quarter of an inch 

 to half an inch. 



M. Bucholz, having some lime after repeated the opera- 

 tion, had the satisfaction to see the same appearance again 

 produced. He assured himself, by all possible trials, that 

 the tin he had employed was absolutely pure. The author 

 proposes different explanations of this phsenomenon, which 

 he believes always will be found in opposition to the rules 

 of the dynamic doctrine of Kant on the perfect equilibrium 

 of all parts of a composition, or the perfect equilibrium 

 of principles in the composition. This theory is, however, 

 every moment in contradiction with experience, inasnmch 

 as it does not take into consideration the determinative force 

 of a decided composition, of which the authors have under- 

 Stood as little as of chemistry in general. 



We shall not report the different explanations of M. Bu- 

 cholz, none of which has appeared to us satisfactory. 



* From J'an Mons's Jnunial, vol. vi. 



f In a former notice the author s>ays sixteen. 



\ In the former annonce it is called two pounds. 



XXIV. On 



