MS. 124 in the library of St. John Baptist College, Oxford, is a quarto of 154 pages, written in two or more hands of the fifteenth century. Its provenance is unknown, and, as it has been carefully and ruthlessly rebound at some time in the nineteenth century, it is impossible to derive any information from the binding. After an unusually elabbrate alphabetical index it bears on folio 11 an inscription in a seventeenth-century hand as follows: ‘Libellus Thomae de Walsingham De generacione naturaque deorum simul cum interpretatione Ouidii Metamorphoseon Simoni Priori Sancti Albani dedicatus.’