Unpublished paper, 'The functions of tympanum' by James Jago Jago presents observations and results of experiments he has made on the ear and the tympanum. Annotations in ink throughout. Marked on front as 'Archives 1858'. Subject: Physiology Received 23 January 1858. Communicated by [William] Stokes. Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 9 of the Proceedings of the Royal Society as 'On the funcions of the tympanum'. 1858