The Directorium Sacerdotum is a sort of ordinal or directory for the Sarum Use, which though a private compilation by the Brigittine Clement Maydeston, acquired a de facto official status. The text here is taken from the quarto edition published by Wynkyn de Worde in 1495 (Duff, n. 294, GW 8460, STC 17724), and is furnished with indices. Vol. 22 in the present series is the second part.