We have other instances of bridge prisons besides the one at Salford. A familiar example is that at Bedford. It has been asserted by several authors that Bunyan was imprisoned in it, but it has been proved beyond doubt that such was not the fact. The bridge prison belonged absolutely to the borough, and Bunyan was a county prisoner, and spent his time in the county gaol. Much interesting information bearing on this subject will be found in Dr. Brown's book on Bunyan. The records of the town contain some curious particulars respecting the bridge. The following may be given as an example: "Item, yt ye ordered that the great cheyne by every nighte at ten of the clocke to be locked crosse the great bridge, and so kept untyl fyve of the clocke in the morninge, and that he or they that shall dwell in the bridge house, to keep the keye of the said locke, and keep the same soe locked, and not suffer aine horse, horseman, or cattell to passe within that tyme wch he shall not knowe. And of them wch he shall knowe, to take a pennie only for letting doune the cheyne and noe more." The prison was taken down in the year 1765. Here was a chapel or oratory, dedicated to St. Thomas the Martyr, built by a Bedford man, early in the fourteenth century, and endowed with lands for the support of a warden or chaplain, who had to repair the bridge at his own expense. A small structure on the old bridge at Bradford-on-Avon has also been used as a prison. Its original purpose has provoked some discussion. Some say that it was erected for a chapel, but not a few question the statement. Aubrey of old, and the Rev. J. Charles Cox, LL.D., and Precentor Venables of our time, are of opinion that it was a chapel. For many years it was used as a lock-up, and later as a powder magazine. It has a dome-like roof, of later date than the building. It bears a model of a gudgeon, the emblem of St. Nicholas. The Bradford-on-Avon folk are familiarly spoken of as Bradford gudgeons. Those who had been imprisoned on the bridge were said to have been "under fish and over water." [Illustration: ST. MARY'S BRIDGE-CHAPEL, DERBY.]