Unpublished paper, 'An account of some recent improvements in photography' by Henry Fox Talbot Talbot writes on a method of obtaining calotype [talbotype] pictures, sharing details of preparation of the paper, the use of the paper and the fixing process. Marked on front as 'To be printed in the Proceedings P M R [Peter Mark Roget] S H C [Samuel Hunter Christie].' Subject: Photography / Photomechanical processes Read 10 June 1841. Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 4 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'An account of some recent improvements in photography'. 1841