The argument of sulphur or no sulphur in waters discussed: with a comparison of the waters of Aix-la-Chapelle, Bath and Bristol / wherein ... the contents of the last are ascertained with a ... greater degree of precision than in the Essay of a late adept [C. Lucas] ... being the subjects of correspondence between the author of the Methodical synopsis of mineral waters [i.e. John Rutty], and W. R. Esq.; and some others. And to this is subjoined a more explicit account of the nitre of the ancients. To which are annexed, two tracts: I. The analysis of milk, and the several species thereof. By John Rutty, M.D. II. A practical dissertation on the uses of goat's whey [by James Kennedy].

Date:: 1762

Credit: The argument of sulphur or no sulphur in waters discussed: with a comparison of the waters of Aix-la-Chapelle, Bath and Bristol / wherein ... the contents of the last are ascertained with a ... greater degree of precision than in the Essay of a late adept [C. Lucas] ... being the subjects of correspondence between the author of the Methodical synopsis of mineral waters [i.e. John Rutty], and W. R. Esq.; and some others. And to this is subjoined a more explicit account of the nitre of the ancients. To which are annexed, two tracts: I. The analysis of milk, and the several species thereof. By John Rutty, M.D. II. A practical dissertation on the uses of goat's whey [by James Kennedy]. Source: Wellcome Collection.

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[6] found to be combined with a volatile acid, as fhall be fhewn in the fequel, and even from fbme of our Author’s own experiments. In the mean time it would be neceflary to ex¬ amine the Phlogijion in a flate of fimplicity, or in flich a form, where it makes the neareft approach thereunto, or at leafl that fubtile fluid or fluids wherein it is found in greatefl abundance, as far as cognizable to our fenfes and capable of being flibjecled to experiments, in order to determine how far the fetor and the tarnifhing of Silver in waters is or is not owing to the Phlogijion alone. In this inquiry we are not to take in every in¬ flammable vapor or fubtile matter, not even that which conflitutes the fulminating damp in mines, taking fire at the approach of a candle, for this, according to the defcription given us of it, (a) leaves a flrong fmcll of brimflone; but there is another Phlogijion which approaches much nearer to fimplicity, being found void of all fmell, and that is, the fubtile inflammable vapor which im¬ mediately catches fire at the approach of a lighted candle, being found floating on the furface of divers waters, and even of fome earths, and is the genuine production of the Petroleum, and often found in the neighbourhood of Coal-Mines ; and the confideration of this fpecies of the Phlo¬ gijion will be more' to the prefent purpofe becaufe of its affinity to that of Sulphur^ which is allowed to be compoied of fome bituminous matter united to the vitriolie aeid. The following inftance of one of thefe phlo- giftic vapors has been tranfmitted : ‘‘In ibme Derbyjhire Lead mines near fVhetJione-edge, have been obferved fome fmall drains or rills of clear water trickling down a Lime-ftone rock ; The workmen at night, when leaving off work, for (c^) LowthoE|> Abr, Phil. TranfaiJt. Vol. II. p. 377. one

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