THREE:One great cause of this progress was the growth of our colonies. They began now to demand a considerable quantity of our manufactures and other articles of domestic comfort and convenience, and to supply us with a number of items of raw material. Towards the end of the reign of George I. our American colonies, besides the number of convicts that we sent thither, especially to Virginia and Maryland, attracted[165] a considerable emigration of free persons, particularly to Pennsylvania, in consequence of the freedom of its constitution as founded by Penn, and the freedom for the exercise of religion.Amongst the followers of Whitefield became[170] conspicuous Rowland Hill, Matthew Wilks, and William Huntington. Of the followers of Whitefield, Selina, Countess of Huntingdon, became the patron, as she had been of Whitefield himself, whom she made her chaplain. This remarkable woman founded schools and colleges for the preachers; and so completely did she identify herself with this sect that it became styled "Lady Huntingdon's Society." Perhaps the most celebrated of these preachers, after Whitefield, was Rowland Hill, who was a younger son of Sir Rowland Hill, of Hawkstone, in Shropshire. He was educated at Cambridge for the Church of England, but preferred following Whitefield, and for many years went about preaching in the open air, like Whitefield, in different parts of the country, and particularly amongst the colliers of Kingswood. In 1783 his chapel, called the Surrey Chapel, being built, he settled in London, and continued his ministry in the metropolis till his death in 1833, at the age of eighty-eight. Rowland Hill was as much celebrated for his humour and eccentricity, which he carried into his preachings, as for his talents. He was also an author of various productions, the most popular of which were his "Village Dialogues."