7C 



SIXTH REPORT — 1836. 



Works on 



mineral 



waters. 



emanations of carbonic acid, and the formation of beds of rock- 

 salt ; on the present occasion it may be sufficient to quote the 

 following brief summary of the points therein insisted on. 



Volcanos give out 



And cause 



Moffettes, connected geogra- 

 phically with volcanos now 

 in action or extinct, give out 



And cause 



Sulphuretted hydrogen, sal am- 

 moniac, boracic acid, muri- 

 atic acid, steam ; 



Deposits of sulphvu', of sulphu- 

 ric salts, of muriatic salts, 

 &c. 



The same principles ; 

 Deposits of sulphur and of sul- 

 phuric salts. 

 Many tertiary clays, some of 

 which are connected in a 

 geographical sense with vol- 

 canos Contain beds of sulphur, of 



earthy sulphates, and of com- 

 mon salt. 

 Most salt formations are asso- 

 ciated with Beds of gypsum. 



Some with Sulphur. 



Others with Sal ammoniac. 



I shall now conclude, by enumerating a few of the newer works 

 on mineral and thermal waters that appear to aiford the most 

 original and important information on the subject, considered in 

 a scientific point of view. 



On English medicinal springs, Dr. Scudamore* has published 

 a good practical treatise, and with the assistance of Mr. Garden, 

 has undertaken to give an analysis of the more important ones 

 which this country possesses. His work, however, is more 

 adapted for practical physicians than for men of science, as he 

 has limited himself exclusively to those mineral waters which 

 already possess a reputation as medicinal agents. 



Professor Angladaf of Montpellier has published a very de- 

 tailed and elaborate description of the thermal springs of the 

 Eastern Pyrenees, in which he has investigated in particular, the 



• Treatise on the Composition and Medical Properties of the Mineral Waters 

 of Buxton, &c. Second Edition. London, 1833. 



f Me'moires pour servir a I' Hisioire geuerale dea Eaux min^rales sulfureuses, 

 2 vols. 1827; and Traife df^ Eaux mimraks dcs Pyrenees Orientales, 2 vols. 

 1833. 



