From Chapter 2:
Peers and squires and parsons and peasants alike smoked. The parson of Thornton, in Buckinghamshire, was so devoted to tobacco that when his supply of the weed ran short, he is said to have cut up the bell-ropes and smoked them! This is dated about 1630. In the well-known description of the famous country squire, Mr. Hastings, who was remarkable for keeping up old customs in the early years of the seventeenth century, we read of how his hall tables were littered with hawks' hoods, bells, old hats with their crowns thrust in, full of pheasants' eggs; tables, dice, cards, and store of tobacco-pipes.

From Chapter 8:
More than one writer of recent days has absurdly misrepresented Johnson as a smoker. The author of a book on tobacco published a few years ago wrote—"Dr. Johnson smoked like a furnace"—a grotesquely untrue statement—and "all his friends, Goldsmith, Reynolds, Garrick, were his companions in tobacco-worship." Reynolds, we know—

When they talk'd of their Raphaels, Corregios, and stuff,
He shifted his trumpet, and only took snuff.

Johnson and all his company took snuff, as every one in the fashionable world, and a great many others outside that charmed circle, did; but Johnson did not smoke, and I doubt whether any of the others did.