From Chapter 3:
A converse view of smoking may be seen in Izaak Walton's "Life" of Sir Henry Wotton, who died in 1639. Walton says that Wotton obtained relief to some extent from asthma by leaving off smoking which he had practised "somewhat immoderately"—"as many thoughtful men do." The italics are mine.

Tobacco, as has been said, was praised as well as abused extravagantly. Much absurdity was written in glorification of the medicinal and therapeutic properties of tobacco, but a more sensible note was struck by some lauders of the weed. Marston wrote in 1607:

From Chapter 8:
When Tennyson was an undergraduate at Cambridge, 1828-30, he and his companions all smoked. At the meetings of the "Apostles"—the little group of friends which included the future Laureate—"much coffee was drunk, much tobacco smoked." Dons smoked as well as undergraduates. At Queens', the Combination-room in Tennyson's time had still a sanded floor, and the "table was set handsomely forth with long 'churchwardens'"—as the poet told Palgrave when the two visited Cambridge in 1859. George Pryme, in his "Autobiographic Recollections," 1870, states that in 1800 "smoking was allowed in the Trinity Combination-room after supper in the twelve days of Christmas, when a few old men availed themselves of it," which looks as if tobacco were not very popular just then at Trinity. With the wine, pipes and the large silver tobacco-box were laid on the table. Porson, when asked for an inscription for the box, suggested Pryme says that among the undergraduates, of whom he was one, tobacco had no favour, and "an attempt of Mr. Ginkell, son of Lord Athlone ... to introduce smoking at his own wine-parties failed, although he had the prestige of being a hat-fellow-commoner."