OF M>:D v i. 393 



might probably be owing to the building which 

 covered and inclofed the well being at that 

 time crowded with people. When water was 

 brought tome, in my room, I found its tempe- 

 rature 8 degrees. Any perfon wifhing to have 

 it as cold as pollible, fhould therefore drink it at 

 the well, and take care to have what he drinks 

 drawn from the bottom. There is alfo another 

 reafon for this, which I fhall mention by and 

 l>ye. 



It tafles fomcwhat of iron, though not difa- 

 grccably ; but has nothing of that pungency 

 which is peculiar to aerated waters. 



In drinking it, the noftrils are oiTended with 

 a hepatic fmcll, like that of rotten eggs. Thi* 

 fmelJ, however, is not very ftrong, for it was 

 not felt by any of thofe who were prcfcnt at the 

 fpring when I firil obfcrvcd it, till I mentioned 

 it to them. Hepatic air is the moil powerful 

 principle in mineral waters: to it the mineral 

 waters of Lokarne and others in Sweden owe 

 their virtues. " And no wonder that the princi- 

 ple of thofc virtues was not earlier difcovercd, 

 as vcJTcls for receiving and collecling aeriform 

 bodies have been but lately invented. 



From what was above faid refpecling the wa- 

 ter of Medvi being warmed at the furfuce, it is 

 plain that the hepatic gas will be fooner dilen- 

 f;aged there. A perfon whofe fenfe of fmcliing 

 h but moderately acute, will readily perceive 

 ; ' the 



