Paper, 'Two experiments of liquids' by Mr [Etienne Francois] Geoffroy Paper regarding a way of making two inflammable liquids which, when mixed together, produce a carnation colour without any fermentation or alteration. The first liquid is made from soaking dried red roses in spirit of wine [purified alcohol], and the second from mixing purified alcohol with spirit of vitriol [sulphuric acid]. Subject: Chemistry English translation published in Philosophical Transactions as 'A way to make two clear spirituous inflammable liquors, which differ very little to taste and smell and being mixed together, do give a fine carnation colour, without sensible fermentation or alteration'. [1690s]