Paper, 'On the electrodynamic qualities of metals' by Prof W [William] Thomson 281 manuscript pages including seven figures and 29 separate plates. Subject: Physics Published in Philosophical Transactions as 'The Bakerian lecture.-On the electro-dynamic qualities of metals'. Received and read by the Royal Society on 29 February 1856. 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 8, 1857. [1856]