$.'>6 Natural History. [Chap. III. 



with great rapidity; so that, at the present period, 

 this may be considered as one of the parts of che- 

 mical philosophy best understood. 



The Dissertation on the Analysis of Mineral 

 Waters published by Bergman, in 1778, was con- 

 sidered as the first great work on this subject. No 

 general mode of analysing mineral waters was 

 known prior to this publication. The author, in 

 this admirable work, not only shed much new light 

 on the subject, but he also carried the investiga- 

 tion of it at once to a very high and honourable 

 degree of perfection. His method, with many ad- 

 ditions and improvements, has been generally 

 adopted by succeeding hydrologists. 



About the same time with the publication of 

 Bergman's work, Messrs. Monnet and Cornette of 

 France, and Gioannetti of Italy, displayed in 

 their respective works considerable talents as 

 hydro-analysts, and gave much valuable informa- 

 tion to the world. These were followed by the 

 excellent treatises of Fourcroy on the waters of 

 E/igiu'c/i, of Klaprolh on the waters of Carlsbad^ 

 and of Black on those of Iceland. In the experi- 

 ments of these distinguished philosophers new and 

 more accurate tests are exhibited, several im- 

 provements in the application of those before 

 known are comnuinicated, and methods unfolded 

 of determining with precision the separate quan-* 

 tities of inseparable substances. 



Next appeared the publications of Dr. Pearson 

 on the waters ol' Buxton, of Dr. Garnett on the 

 ^\ aters of Harroivgatc, of Mr. Lambe on those of 

 Lcniington Priors, of M. Breze on those of Fu, 

 and of M. Hasscnfratz on those of Pougucs. — ^To 



