Paper, 'On the long spectrum of electric light' by G G [George Gabriel] Stokes 91 manuscript pages including two figures. Subject: Physics Published in Philosophical Transactions as 'On the long spectrum of electric light'. Received and read by the Royal Society on 19 June 1862. 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. [1862]