Unpublished diagrams, sunlight passing around card and light currents by [John Barton] Figures 9, 13, and 14 showing diagrams of the sun's light passing around a card and 'light currents'. Subject: Physics Communicated by Davies Gilbert. Received by the Royal Society on 5 March [1831]. Read 16 June 1831. Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 3 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'On the inflexion of light'. A similar paper was published by Barton in the The London and Edinburgh Philosophical Magazine and Journal of Science: Barton, John. 'On the inflexion of light'. The London and Edinburgh Philosophical Magazine and Journal of Science, series 3, volume 2, pp. 263-269. [1831]