From Chapter 4:
The variations in price of both Spanish and Virginia tobacco were largely due to the frequent changes in the amount of the duty thereon. In 1604 King James I, newly come to the throne, and full of iconoclastic fervour against the weed, raised the duty to 6s. 8d. per lb. in addition to the original duty of 2d. On March 29, 1615, there was a grant to a licensed importer "of the late imposition of 2s. per lb. on tobacco"—which shows that there must have been considerable fluctuation between 1604 and 1615—while in September 1621 the duty stood at 9d. Through James's reign much dissatisfaction was expressed about the importation of Spanish tobacco, and the outcome of this may probably be seen in the proclamations issued by the King in his last two years forbidding "the importation, buying, or selling tobacco which was not of the proper growth of the colonies of Virginia and the Somers Islands." These proclamations were several times confirmed by Charles I, the latest being on January 8, 1631; but they do not seem to have had much effect.

From Chapter 8:
Another famous parson, the Rev. John Newton, was a smoker, and so was Cowper's other clerical friend, that learned and able Dissenter, the Rev. William Bull, whose whole mien and bearing were so dignified that on two occasions he was mistaken for a bishop. Cowper appreciated snuff, but did not care for smoking, and when he wrote to Unwin, describing his new-made friend in terms of admiration, he concluded—"Such a man is Mr. Bull. But—he smokes tobacco. Nothing is perfection 'Nihil est ab omni parte beatum.'" Bull, however, was not excessive in his smoking, for his daily allowance was but three pipes. In his garden at Newport Pagnell, Bull showed Cowper a nook in which he had placed a bench, where he said he found it very refreshing to smoke his pipe and meditate. "Here he sits," wrote Cowper, "with his back against one brick wall, and his nose against another, which must, you know, be very refreshing, and greatly assist meditation."