Paper, 'Contribution towards the history of thialdine' by A W [August Wilhelm von] Hofmann Hofmann briefly shares details of some experiments which he believes provide insight into the constitution of thialdine. Annotations in ink throughout. Marked on front as 'For the Proceedings'. Subject: Analytical chemistry Received 30 May 1857. Read 18 June 1857. Written by Hofmann at the Royal College of Chemistry [London]. A version of this paper was published in volume 8 of the Proceedings of the Royal Society as 'Contribution towards the history of thialdine'. 27 May 1857