Paper, 'Account of experiments made on the strength of materials' by George Rennie in a letter to Thomas Young 21 manuscript pages and two plates showing the plan and end of the levers and nippers used in experiments. Subject: Physics Published in Philosophical Transactions as 'Account of experiments made on the strength of materials. By George Rennie, jun. Esq. In a letter to Thomas Young, M.D. For. Sec. R. S'. Written by Rennie in London. Read 12 February 1818. 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 2, 1833. 3 June 1817