Mr. Offor's patient researches in the State Paper Office have proved that the Quakers, than whom no class of sectaries had suffered more severely from the persecuting edicts of the Crown, were mainly instrumental in throwing open the prison doors to those who, like Bunyan, were in bonds for the sake of their religion. Gratitude to John Groves, the Quaker mate of Tattersall's fishing boat, in which Charles had escaped to France after the battle of Worcester, had something, and the untiring advocacy of George Whitehead, the Quaker, had still more, to do with this act of royal clemency. We can readily believe that the good-natured Charles was not sorry to have an opportunity of evidencing his sense of former services rendered at a time of his greatest extremity. But the main cause lay much deeper, and is connected with what Lord Macaulay justly styles "one of the worst acts of one of the worst governments that England has ever seen"--that of the Cabal. Our national honour was at its lowest ebb. Charles had just concluded the profligate Treaty of Dover, by which, in return for the "protection" he sought from the French king, he declared himself a Roman Catholic at heart, and bound himself to take the first opportunity of "changing the present state of religion in England for a better," and restoring the authority of the Pope. The announcement of his conversion Charles found it convenient to postpone. Nor could the other part of his engagement be safely carried into effect at once. It called for secret and cautious preparation. But to pave the way for it, by an unconstitutional exercise of his prerogative he issued a Declaration of Indulgence which suspended all penal laws against "whatever sort of Nonconformists or Recusants." The latter were evidently the real object of the indulgence; the former class were only introduced the better to cloke his infamous design. Toleration, however, was thus at last secured, and the long-oppressed Nonconformists hastened to profit by it. "Ministers returned," writes Mr. J. R. Green, "after years of banishment, to their homes and their flocks. Chapels were re- opened. The gaols were emptied. Men were set free to worship God after their own fashion. John Bunyan left the prison which had for twelve years been his home." More than three thousand licenses to preach were at once issued. One of the earliest of these, dated May 9, 1672, four months before his formal pardon under the Great Seal, was granted to Bunyan, who in the preceding January had been chosen their minister by the little congregation at Bedford, and "giving himself up to serve Christ and His Church in that charge, had received of the elders the right hand of fellowship." The place licensed for the exercise of Bunyan's ministry was a barn standing in an orchard, once forming part of the Castle Moat, which one of the congregation, Josias Roughead, acting for the members of his church, had purchased. The license bears date May 9, 1672.