146 Intelligence and Miscellaneous Articles, 



SALE OF BROMINE. 



The discoverer of bromine, M. Balard, has been enabled, by his im- 

 provements, to prepare that peculiar body in quantities sufficient to 

 permit its sale. It may be obtained at his shop, Rue Argenterie at 

 Montpellier, or at M. Quesneville's manufactory of chemical sub- 

 stances, at Paris. The price is four francs the gros (about 60 grains), 

 fourteen francs the half ounce, and twenty-three francs the ounce. — 

 Ibid. 



PREPARATION OF IODOUS ACID. 



M. Pleischl says that, in preparing this acid, three parts of chlorate 

 of potash with one of iodine are to be used, and not equal parts, ac- 

 cording to M. Sementini j and also that it is indispensable to cool the 

 receiver considerably during the whole operation. — Ibid. 



NEW BORATE OF SODA. 



M. Payen lately presented to the Society of Pharmacy a new borate 

 of soda, which will advantageously be substituted for calcined borax. 

 It crystallizes in regular octahedrons, is harder than common borax, 

 and is almost as sonorous as cast iron : its fracture is vitreous, and 

 rather undulated. When immersed in water, the crystals become 

 opake, and retain their opacity in dry air. 



This borate differs but little from common borax, except in contain- 

 ing less water of crystallization. It is more convenient for soldering 

 copper than common borax, because it does not swell so much. — 

 Journal de Pharmacie, Dec. 1827. p. 624. 



ANALYSIS OF A SALIVARY CONCRETION. 



This concretion was analysed by M. Lecanu : it weighed 0'45 

 gramme, its form was oval and slightly rough in the surface : when 

 broken it presented two distinct layers j the central one was hard, 

 compact, and of a gray colour -, the outer one was friable and per- 

 fectly white. It yielded by analysis : 



Phosphate of lime 75 



Carbonate of lime '20 



Animal matter and loss 5 



100 

 This salivary concretion differs, then, in its composition from those 

 previously analysed by MM. Wollaston, Laugier, and Henry jun. j — 

 from the first, by the presence of carbonate of lime j from the second, 

 by the absence of carbonate of magnesia ; and from the third, by the 

 absence of carbonate and phosphate of magnesia and common salt. 

 It contains the same principles as the salivary concretions of the horse, 

 elephant, and cow, analysed by M. Lassaigne. — Ibid. p. 626. 



HAIDINGERITE, A NEW MINERAL SPECIES. 



This substance, so called in honour of M. Haidinger, is an ore of 

 antimony which is found near Chazelles in Auvergne. The ore was 



rejected, 



