From Chapter 3:
Some of the apothecaries whose shops were in most repute for the quality of the tobacco kept, took pupils and taught them the "slights," as tricks with the pipe were called. These included exhaling the smoke in little globes, rings and so forth. The invaluable Ben Jonson, in the preliminary account of the characters in his "Every Man out of his Humour," 1600, describes one Sogliardo as "an essential clown ... yet so enamoured of the name of a gentleman that he will have it though he buys it. He comes up every term to learn to take tobacco and see new motions." Sogliardo was accustomed to hire a private room to practise in. The fashionable way was to expel the smoke through the nose. In a play by Field of 1618, a foolish nobleman is asked by some boon companions in a tavern: "Will your lordship take any tobacco?" when another sneers, "'Sheart! he cannot put it through his nose!" His lordship was apparently not well versed in the "slights."

From Chapter 6:
After King William III was settled on the throne the sum of £600,000 was paid to the Dutch from the English exchequer for money advanced in connexion with his Majesty's expedition, and this amount was paid off by tobacco duties. Granger long ago remarked that most of the eminent divines and bishops of the day contributed very practically to the payment of this revolutionary debt by their large consumption of tobacco. He mentions Isaac Barrow, Dr. Barlow of Lincoln, who was as regular in smoking tobacco as at his meals, and had a high opinion of its virtues, Dr. Aldrich, "and other celebrated persons who flourished about this time, and gave much into that practice." One of the best known of these celebrated persons was Gilbert Burnet, Bishop of Salisbury from 1689, and historian of his own times. He had the reputation of being an inveterate smoker, and was caricatured with a long clay stuck through the brim of the shovel hat, on the breadth of which King William once made remark. The bishop replied that the hat was of a shape suited to his dignity, whereupon the King caustically said, "I hope that the hat won't turn your head."