Paper, 'Experiment on Eaton's styptick' by [Conrad Joachim] Sprengell [Sprengwell] Sprengwell describes the history of the development of styptics, including [Claude Adrien] Helvetius' 'medicinal ball', for which he provides instructions. He goes on to discuss Dr Eaton's balsamic styptic and his own experiments using this styptic and that of Helvetius to stop bleeding in dogs, determining that neither was superior to the other. This is a short postscript to the paper, focusing on an experiment on stemming the bleeding of the carotid artery. The majority of the paper is found at CLP/11ii/5. Subject: Medicine Published in Philosophical Transactions as 'Some observations upon Dr. Eaton's styptick. By Dr. Sprengell, R. S. S. Coll. Med. Lond. Lic'. Read to the Royal Society on 11 June 1724. [1724]