From Chapter 3:
The fumes of dried coltsfoot leaves were used as a remedy in cases of difficulty of breathing, both in ancient Roman times and in Tudor England. Lyte, in his translation, 1578, of Dodoens' "Historie of Plants," says of coltsfoot: "The parfume of the dryed leaves layde upon quicke coles, taken into the mouth through the pipe of a funnell, or tunnell, helpeth suche as are troubled with the shortnesse of winde, and fetche their breath thicke or often, and do [sic] breake without daunger the impostems of the breast." The leaves of coltsfoot and of other plants have often been used as a substitute for tobacco in modern days. A correspondent of Notes and Queries, in 1897, said that when he was a boy he knew an old Calvinist minister, who used to smoke a dried mixture of the leaves of horehound, yarrow and "foal's foot" intermingled with a small quantity of tobacco. He said it was a very good substitute for the genuine article. Similar mixtures, or the leaves of coltsfoot alone, have often been smoked in bygone days by folk who could not afford to smoke tobacco only.

From Chapter 8:
Parr is said on one occasion to have called for a pipe after taking a meal at a coaching-inn called the "Bush" at Bristol, when the waiter told him that smoking was not allowed at the Bush. Parr persisted, but the authorities at the inn were firm in their refusal to allow anything so vulgar as smoking on their premises, whereupon Parr is said to have exclaimed: "Why, man, I've smoked in the dining-room of every nobleman in England. The Duchess of Devonshire said I could smoke in every room in her house but her dressing-room, and here, in this dirty public-house of Bristol you forbid smoking! Amazing! Bring me my bill." The learned doctor exaggerated no doubt as regards the facilities given him for smoking; for it was his overbearing way not to ask for leave to smoke, but to smoke wherever he went, whether invited to do so or not; but the story shows the prejudice against smoking which was found in many places as a result of the attitude of the fashionable world towards tobacco.