Paper, 'Description de l'opération qui n'a pas réussi pour volatilizer le tartre' by Mr [Nicaise] Le Fevre [Febvre] 'Description of the unsuccessful operation to volatilise tartar'. Le Febvre describes an unsuccessful attempt to volatilise tartar by mixing it with rainwater and potassium carbonate, allowing it to evaporate, and then mixing the resulting substance with an alum. English translation found at CLP/11i/4. Subject: Chemistry Read to the Royal Society on 1 July 1663. [1663]