Paper, 'A continuation of the discourse concerning vitriol, begun in numb. 103; shewing, that vitriol is usually produced by sulphur, acting on, and concoagulating with, a metal; and occasionally making out, that allom is the result of the said sulphur; as also evincing, that vitriol, sulphur, and allom do agree in the saline; and lastly declaring the nature of the salt in brimstone, and whence it is derived' by unknown author Paper regarding the creation of vitriol [sulphuric acid], the production of allom [alum] from sulphur, and discussing the nature of salt found in brimstone [sulphur]. Subject: Chemistry Published in Philosophical Transactions as 'A continuation of the discourse concerning vitriol, begun in numb. 103; shewing, that vitriol is usually produced by sulphur, acting on, and concoagulating with, a metal; and then making out, that allom likewise the result of the said sulphur; as also evincing, that vitriol, sulphur, and allom do agree in the saline principle; and lastly declaring the na­ture of the salt in brimstone, and whence it is derived'. [1674]