16 SIXTH REPORT — 1836. 



Barytes. Traces of barytes have likewise been detected by Brandes and 



Kruger in the chalybeate of Pyrmont, and by Berzelius in the 

 thermal water of Carlsbad. 

 Potassa and Potass was found in that of Toeplitz * and of Konigsworth in 

 Lithia. Bohemia ; in the water of Bourbon Lancy, by Pavis f ; and in 

 one of the Cheltenham waters, by Faraday j; whilst even Lithia 

 has been discovered in several, as at Pyrmont in Westphalia § } 

 at Carlsbad ||, Franzensbad, and Marienbad, in Bohemia j and 

 at Rosheim near Strasburg %. 

 Iodine and ^^e ingredients of salt springs in general have long been un- 

 Bromine. derstood to be the same, as those which were known to exist in 

 the present ocean, but upon the discovery of the two new prin- 

 ciples, iodine and bromine, — iodine abundantly in various marine 

 productions, and more sparingly in the ocean itself; bromine 

 less commonly indeed in the former, but in much larger quan- 

 tity in the latter, — chemists were naturally led to inquire, whe- 

 ther the correspondence, that had before been traced between 

 the actual and former constitution of these reservoirs of salt 

 water extended also to the presence of the above tAvo bodies in 

 them both. Accordingly Angelini searched for and discovered 

 iodine in certain springs of Piedmont ** ; Vogel did the same at 

 Heilbrunn in Bavaria f f ; and Turner at Bonington near Leith ; 

 whilst Boussingault met with it in a spring fifteen leagues from 

 Popa}'an in the Andes, eighty or ninety miles from the sea, and 

 10,000 feet above its level ||. 



With regard to bromine, this principle was detected by Liebig 

 at Kreutznach in the Palatinate §§ ; by Vogel |||{ at Rosenheim 

 in Bavaria, and at Wiesbaden in Nassau 51 If ; by Desfosses at 

 Salins, in the Department of the Jura***, and at Bourbon les 

 Bains, in France ; and by Stromeyer in various springs of the 

 kingdom of Hanoverf f f . 



Having also myself discovered bromine as well as iodine in 

 several salt springs of South Britain, I was led to prosecute an 

 extended examination of the principal ones, containing any con- 



* Berzelius, Untersitchung, translated in the Annales de Cliimie, vol. xxviii. 



t Annales de Chimie, Nov. 1827. X Journal of Science. 



§ Brandes and Kruger. II Kastner's Archiv, b. vi. 



% Edinburgh Nevj PhilosophicalJournal, for Oct. 1836. 



** Journal des Mines, vol. viii. ft Mineral Quellen desBaiern, 1825. 



\X Annales de Chimie, vol. v. 1833, or journal of the Royal Institution, N. S. 

 vol. iii., from Dr. Mill." 



§§ Annales de Chimie for 1826, p. 330. 



{Ill Mineral Quellen des K. Baiern. Hlf Kastner's Archiv, vol. xiii. 



••* Ferussac's Bull, part viii. 



ttt See Schweigger's /o^^rnn/, 1827, for "A List of the Localities in which 

 Bromine had been detected." 





