TY - JOUR T1 - A Letter of Dr. John Wallis to Samuel Pepys Esquire, Relating to Some Supposed Imperfections in an Organ JF - Philosophical Transactions (1683-1775) VL - 20 SP - 249 EP - 256 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1698.0046 M3 - doi:10.1098/rstl.1698.0046 AU - Wallis, J. ER -