Paper, 'Researches into the chemical constitution of narcotine' by A [Augustus] Matthiessen and G C [George Carey] Foster Subject: Chemistry Published in Philosophical Transactions as 'Researches into the chemical constitution of narcotine, and of its products of decomposition.—Part I'. Received by the Royal Society on 26 February 1863. Read 26 March 1863. Abstract published in Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society of London], Volume 12, 1863. [1863]