Paper, 'The Bakerian lecture. Researches on radiant heat' by John Tyndall 85 manuscript pages including one figure and five separate plates. Subject: Physics Published in Philosophical Transactions as 'The Bakerian lecture.— Contributions to molecular physics.— Being the fifth memoir of researches on radiant heat'. Received and read by the Royal Society on 17 March 1864. 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 13, 1864. [1864]