From Chapter 8:
There is ample evidence, apart from Johnson's dictum, that in the latter part of the eighteenth century smoking had "gone out." In Mrs. Climenson's "Passages from the Diaries of Mrs. Lybbe Powys," we hear of a bundle of papers at Hardwick House, near Whitchurch, Oxon, which bears the unvarnished title "Dick's Debts." This Dick was a Captain Richard Powys who had a commission in the Guards, and died at the early age of twenty-six in the year 1768. This list of debts, it appears, gives "the most complete catalogue of the expenses of a dandy of the Court of George II, consisting chiefly of swords, buckles, lace, Valenciennes and point d'Espagne, gold and amber-headed canes, tavern bills and chair hire." But in all the ample detail of Captain Powys's list of extravagances there is nothing directly or indirectly relating to smoking. The beaux of the time did not smoke.

From Chapter 14:
Another eighteenth-century instance of smoking in church, taken from historical fact and not from fiction, is associated with the church of Hayes, in Middlesex. The parish registers of that village bear witness to repeated disputes between the parson and bell-ringers and the parishioners generally in 1748-1754. In 1752 it was noted that a sermon had been preached after a funeral "to a noisy congregation." On another occasion, says the register, "the ringers and other inhabitants disturbed the service from the beginning of prayers to the end of the sermon, by ringing the bells, and going into the gallery to spit below"; while at yet another time "a fellow came into church with a pot of beer and a pipe," and remained "smoking in his own pew until the end of the sermon." Going to church at Hayes in those days must have been quite an exciting experience. No one knew what might happen next.