[ 26] 



yellow oily matter ; but I got no felenites, nor any 

 matter which coloured filver, or I had any reafon^to 

 fufpect to be fulphur. 



Some of the fait was diffolved ia diftilled water, . 

 and different liquors were dropt into, different parcels, 

 of it. 



Syrup of violets became immediately of a greens 

 colour. 



Each drop of a folution of filver in the nitrous acid,v 

 occafioned a bluifh . white cloud,, which, fell to the. 

 bottom* 



The folution o£ the foiHl alkali mixed clear, as did 

 a folution of faLt 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- . 

 vefced,.and emitted acid. fumes, while it yet was 

 mixed with a good deal of the yellow oily matter ; . 

 but after the fait was diflolved in diftilled water, and, 

 again cryflallifed, and freed of moil 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 fomexafes, where the other 

 may not agree. 



Of the Salt Purging Water of Pitkeathly, in the. 

 County of Perth, 



There are but few fait purging waters, which 

 have, hitherto been difcovered in. Scotland ; the , 



Pitkeathly 



