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 7:
The satirist wrote truly that after all the fashionable abstainers had been deducted, crowds remained, who smoked as heartily as their predecessors of a century earlier. The populace was still on the side of tobacco. This was well shown in 1732 when Sir Robert Walpole proposed special excise duties on tobacco, and brought a Bill into Parliament which would have given his excisemen powers of inquisition which were much resented by the people generally. The controversy produced a host of squibs and caricatures, most of which were directed against the measure. The Bill was defeated in 1733, and great and general were the rejoicings. When the news reached Derby on April 19 in that year, the dealers in tobacco caused all the bells in the Derby churches to be rung, and we may be sure that this rather unusual performance was highly popular. The withdrawal of the odious duty was further celebrated by caricatures and "poetical" chants of triumph. One of the leading opponents of the Bill had been a well-known puffing tobacconist named Bradley, who was accustomed to describe his wares as "the best in Christendom"; and when the Bill was defeated Bradley's portrait was published for popular circulation, above these lines:

Behold the man, who, when a gloomy band
Of vile excisemen threatened all the land,
Help'd to deliver from their harpy gripe
The cheerful bottle and the social pipe.
O rare Ben Bradley! may for this the bowl,
Still unexcised, rejoice thy honest soul!
May still the best in Christendom for this
Cleave to thy stopper, and compleat thy bliss!