On the ſurface of the water there floats a liquid bitumen, although it be every day ſcummed off, as it doth on the lake Aſphaltites in Judæa: The Inhabitants uſe it as pitch: it is alſo found to be an excellent vulnerary, and good in curing old cacoethic and ſcrophulous ulcers.
1757, John Rutty, A Methodical Synopsis of Mineral Waters, Comprehending the Most Celebrated Medicinal Waters, both Cold and Hot, of Great-Britain, Ireland, France, Germany, and Italy, and several other Parts of the World, London: Printed for William Johnston, at the Golden Ball in St. Paul's Church-Yard, page 494