writings, beside, inserted in scientific 

 collections, are known but to some learned 

 physicians, and treat only of a few ques- 

 tions concerning our waters. As to Dr. 

 Kreysig's work, the greatest praise is due 

 to Dr. Gordon Thompson and Mr. F. W. 

 Bekenn, whose translation is far more 

 lucid and intelligible than the theoretical 

 part of the original. Much, but not the 

 same, can be said on natural and on 

 artificial mineral waters, and the medical 

 world has not yet understood how such 

 a celebrated physician as Dr. Kreysig, 

 could so completely assimilate art and 

 nature , both in the text and title of his 

 work. 



PRAGUE , 12th January 1835. 



