An instance is preserved in Markulf's formulary (ii.
He also edited a Formulary of the Papal Penitentiary in the 13th century (Philadelphia, 1892), and in 1908 was published his Inquisition in the Spanish Dependencies.
Guest, bishop of Rochester, shows " an attempt to give greater completeness to the formulary," and to make clearer the Catholic position of the Church of England.
the formulary of the papal bulls began to crystallize, and the letters amassed in the papal offices were differentiated clearly into great and little bulls, according to their style, arrangement and signs of validation.
Although at one period he certainly shrank from reciting the Athanasian Creed in church, he was towards the close of his life found ready to join an association for the defence of this formulary.