From Chapter 2:
The rich young gallant carried about with him his tobacco apparatus (often of gold or silver) in the form of tobacco-box, tobacco-tongs—wherewith to lift a live coal to light his pipe, ladle "for the cold snuffe into the nosthrill," and priming-iron. Sometimes the tobacco-box was of ivory; and occasionally a gallant would have looking-glass set in his box, so that when he took it out to obtain tobacco, he could at the same time have a view of his own delectable person. When our gallant went to dine at the ordinary, according to the custom of the time, he brought out these possessions, and smoked while the dinner was being served. Before dinner, after taking a few turns up and down Paul's Walk in the old cathedral, he might look into the booksellers' shops, and, pipe in mouth, inquire for the most recent attack upon the "divine weed"—the contemporary tobacco literature was abundant—or drop into an apothecary's, which was usually a tobacco-shop also, and there meet his fellow-smokers.

From Chapter 8:
In the first two or three decades of the nineteenth century smoking reached its nadir. No dandy smoked. If some witnesses may be believed smoking had almost died out even at Oxford. Archdeacon Denison wrote in his "Memories"—"When I went up to Oxford, 1823-24, there were two things unknown in Christ Church, and I believe very generally in Oxford—smoking and slang"; but one cannot help fancying that the archdeacon's memory was not quite trustworthy. It is difficult to imagine that there was ever a time when the slang of the day was not current on the lips of young Oxford, or that so long as tobacco was procurable it did not find its way into college rooms.