The next effort made in England to enforce enclosure upon nuns was the result of Boniface VIII's Bull _Periculoso_. Bishops' registers about the year 1300 sometimes contain copies of this severe enactment. One of the earliest efforts to carry it out was made by Simon of Ghent, Bishop of Salisbury, who on November 28th, 1299, issued a long letter to the Abbess of Wilton (obviously inserted in the register as a specimen of a circular sent to each nunnery in the diocese), embodying the text of the bull and ordering her to put it into force, and in 1303 he issued a mandate for the enclosure of the nuns of Shaftesbury, Wilton, Amesbury, Lacock, Tarrant Keynes and Kington[1089]. The Register of Godfrey Giffard, Bishop of Worcester, contains a note in the year 1300: As to the shutting up of nuns. It is expedient that a letter of warning be sent according to the form of the constitution and directed to every house of nuns, that they do what is necessary for their inclusion and cause themselves to be enclosed this side the Gule of August. The Bishop seems however from the beginning to have doubted his capacity to carry out the decree, for further on the register contains another note, "As to whether it is expedient to enclose the nuns of the diocese of Worcester"[1090]. An undated note of _Inhibiciones facte monialibus de Werewell_ in the Register of John of Pontoise, Bishop of Winchester, among other documents belonging to 1299-1300, is probably in part a result of _Periculoso_: We forbid on pain of excommunication any nun or sister to go outside the bounds of the monastery until we have made some ordinance concerning enclosure. Item let no one be received as nun or sister until we have enquired more fully into the resources of the house. Item we order the abbess to remove all secular women and to receive none henceforth as boarders in their house. Item let her permit no secular clerk or layman to enter the cloister to speak with the nuns[1091]. But the most detailed information as to the efforts of a conscientious bishop to enforce Boniface VIII's decree in England is contained in the Register of Bishop Dalderby of Lincoln. Dalderby was a new broom in the diocese and he determined to sweep clean. On June 17th, 1300, he directed a mandate to the archdeacons of his diocese ordering each to associate with himself some other mature and honest man and to visit the religious houses in his own archdeaconry, explaining the terms of the new bull intelligibly to the nuns and ordering them to remain within their nunneries and to permit no one to enter the precincts contrary to the tenour of the decree, until the Bishop should be able to visit them in person; the heads of the houses were to be specially warned to carry out the decree and for better security a sealed copy of it was to be deposited in each house by the commissioners[1092].