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 6:
At the Quarterly Meeting of Aberdeen Friends in 1692 a "weighty paper containing several heads of solid advyces and Counsells to friends" sent by Irish Quakers, was read. These counsels abound with amusingly prim suggestions. Among them is the warning to "take heed of being overcome with strong drink or tobacco, which many by custome are brought into bondag to the creature." The Aberdeen Friends themselves a little later were greatly concerned at the increasing indulgence in "superfluous apparell and in vain recreations among the young ones"; and in 1698 they issued a paper dealing in great detail with matters of dress and deportment. Among a hundred other things treated with minutest particularity, the desire is expressed that "all Idle and needless Smoaking of tobacco be forborn."