This thirteen-volume series, published for the Yorkshire Archaeological Society between 1914 and 1965, is an extensive collection of the pre-thirteenth-century deeds and charters of Yorkshire, which had previously remained largely unpublished. The first three volumes were expertly edited by William Farrer (1861 1924), after whose death Charles Travis Clay (1885 1978) took up the task. The series was well respected for the quality of Farrer's editing, which was only surpassed by that of Clay in the later volumes. The lack of an index was considered by many reviewers to be the only shortcoming...