'The Art of making Parchment, Vellam, Glue etc' from John Beale Account of how Matthew Wills of Yeovil makes parchment and vellum (which Beale believes is the best in England at 5 shillings a roll). He choses calf skin for vellum and skins of ewes or rams, rather than wethers, for parchment Figures in text Read to the Royal Society on 25 May 1664 1664