Unpublished paper, 'Expansion of metals and alloys' by F [Frederick] Crace Calvert and G Cliff Lowe Calvert and Lowe note their finding that several of the authors who had previously published tables of the expansion of metals differed widely in their results. They suggest that these discrepancies, having reference to some of the metals most extensively used, might be due either to the method employed, or to the fact that metals of different degrees of purity had been experimented upon. Having pure metals at their disposal, Calvert and Lowe describe their experiments on these metals which they believe yield accurate results. Annotations in pencil and ink throughout. Marked on front as 'Phil Trans [crossed out] Archive'. Subject: Physics / Chemistry Received 1 December 1859. Communicated by Calvert. Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 10 of the Proceedings of the Royal Society as 'On the expansion of metals and alloys'. 1859