From Chapter 2:
A curious scene took place at Oxford in 1605 when King James visited the University. Two subjects were debated by learned dons before his Majesty, and one of them, at his own suggestion, was, "Whether the frequent use of tobacco is good for healthy men?" Among those who spoke were Doctors Ailworth, Gwyn, Gifford and Cheynell. The discussion, needless to say, being conducted in the presence of the author of the "Counterblaste to Tobacco," was not favourable to the herb. The King summed up in a speech which hopelessly begged the question while it contained plenty of strong denunciation. After his Majesty had spoken, one learned doctor, Cheynell, who is described by the recorder, Isaac Wake, the Public Orator of the University, as second to none of the doctors, had the courage to rise and, with a pipe held forth in his hand, to speak both wittily and eloquently in favour of tobacco from the medicinal point of view, praising it to the skies, says Wake, as of virtue beyond all other remedial agents. His wit pleased both the King and the whole assembly, whom it moved to laughter; but when he had finished, his Majesty made a lengthy rejoinder in which he said some curious things. He objected to the medicinal use of tobacco, and quite agreed with previous speakers that such a use must have arisen among Barbarians and Indians, who he went on to say had as much knowledge of medicine as they had of civilized customs. If, he argued, there were men whose bodies were benefited by tobacco-smoke, this did not so much redound to the credit of tobacco, as it did reflect upon the depraved condition of such men, that their bodies should have sunk to the level of those of Barbarians so as to be affected by remedies such as were effective on the bodies of Barbarians and Indians! His Majesty kindly suggested that doctors who believed in tobacco as a remedial agent should take themselves and their medicine of pollution off to join the Indians.

From Chapter 7:
Hogarth himself was a confirmed pipe-lover. When he and Thornhill and their three companions set out from Gravesend for the final stage, up the river, of their famous "Five Days Peregrination," we are told that they hired a boat with clean straw, and laid in a bottle of wine, pipes, tobacco, and light, and so came merrily up the river. The arm-chair in which Hogarth was wont to sit and smoke is still preserved in his house at Chiswick, which has been bought and preserved as a memorial of the moralist-painter; and in the garden of the house may still be seen the remains of the mulberry tree under which Mr. Austin Dobson suggests that Hogarth and Fielding may have sat and smoked their pipes together in the days when George was King.