corked, and along with them a letter from Dr* 
Alexander Mackenzy, dated Augufl 9, 1771, con- 
taining the following account. 
44 The Cafile-Loed is a -flrong fulphureous mine- 
44 ral water j. when taken up from the fpring, it is 
“ as pure and transparent as the cleared: rock water ; 
44 but if kept in an open vefifel, or an ill-corked 
“ bottle, it loon becomes of a milky fort of foulnefs, 
44 and it loles its flrong fulphureous fmell in twenty- 
44 four hours. 
“ The bottom of the well, and of the channel 
44 which conveys its water from thence, is black, as 
44 if dyed with ink ; and the leaves of the aller 
“ bullies that Fall into the well, or into its channel, 
44 foon coniradt a blackilli colour in the water; but 
“ when taken out, and dried in the fun or fhade, 
“ appear covered with a whitifh dull, which is un- 
tc doubted ly fulphur ; for,, by burning one or more 
44 on an ignited fhovel, or clear live coal, they pro- 
4 4 duce a blue flame, and emit a very fuffocating 
44 fulphureous fmell. 
“ All that I can learn of the operation of this 
44 water, from fome fenfible people of credit and 
c ‘ obfervation, who have drunk it this as -well as for- 
44 mer feafons, is', that it very fenfibly increafes the 
44 urine, and .fometimes remarkably opens the pores; 
<c but I do not find, from the report of any, that it 
44 purges, though drunk to the quantity of three, 
44 fometimes of four, Englifh quarts in the day. 
44 Almoft every perfon remarks, that it whets the 
44 appetite, and fits light on the ftomach. I have 
44 been told by feveral, that they have had head- 
2 44 achs 
