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.
An instance is preserved in Markulf's formulary (ii.
It was held in 1642 under the presidency of Peter of Mogila, and a formulary of the Orthodox creed was drawn up. An answer to the Lutheran Catechism of Heidelberg (translated into Rumanian and printed at Fogaras in 1648) was also prepared by Bishop Varlaam.