{ 26 ] 
yellow oily matter ; but I got no felenites, nor any 
matter which coloured filver, or l had any realon to , 
fulpect to be fulphur. 
Some of the fait was diffolved in diftilled water, . 
and different liquors were dropt 'into different parcels 
of it. v. 
Syrup of violets became immediately of a green 
colour. 
Each drop of a foldtion-of filver in the nitrous acid, . 
occafioned a bluifh whiter cloud,- which' fell to the 
bottom-. 
The folutiorr of the fofiil alkali mixed clear, as did 
a folution of fait of- tartar, but each drop of a folu- 
tion of common cauftic alkali gave a white cloud; 
fome oil of vitriol dropt on- a little of this fait effer- 
velced, and emitted acid fumes, while it yet was 
mixed with a good deal of the yellow oily matter ; 
but after the fait was difiblved in diftilled water, and 
again cryftallifed, and freed of moft of this yellow 
matter, no fumes were to be obferved ; and the acid 
fmell was extremely faint when ftrong fpirit or oil 
of vitriol was dropt upon it. 
This, though it does not appear to be fuch a 
ftrong fulphureous water as the Caftle-Loed, yet it 
may have its ufes, and be ferviceable to thofe who 
have not an opportunity of ufing the other; and it 
may perhaps be ufeful in fome cafes, where the other 
may not agree. 
Of the Salt Purging Water of Pitkeathly, in tho 
County of Perth, 
There are but few fait purging waters, which 
have , hitherto been difcovered in Scotland-; the 
Pitkeathly, 
