TY - JOUR T1 - A Letter from Dr. John Wallis, to One of the Secretaries of the Royal Society (Dr. Robert Plot, the Publisher of these Transactions) concerning an Antient Mantle-Tree in Northampton-Shire; on which the Date of It (for the Year of our Lord 1133) is Expressed by the Numeral Figures, which Shews the Great Antiquity of Those Figures Here in England JF - Philosophical Transactions (1683-1775) VL - 13 SP - 399 EP - 403 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1683.0054 M3 - doi:10.1098/rstl.1683.0054 AU - Wallis, J. ER -