From Chapter 3:
Sometimes coltsfoot was mixed with tobacco. Ursula, the pig-woman and refreshment-booth keeper in Bartholomew Fair, in Ben Jonson's play of that name, says to her assistant: "Threepence a pipe-full I will have made, of all my whole half-pound of tobacco and a quarter of a pound of coltsfoot mixt with it too to eke it out."

From Chapter 12:
Barry's original plan for the Travellers' Club, erected in 1832, shows no smoking-room on the ground floor. It was probably some inconvenient apartment of no account. The early "Travellers" did smoke, for Theodore Hook, satirizing them and the club rule that no person was eligible as a member who had not travelled out of the British Islands to a distance of at least 500 miles from London in a direct line, wrote:

The travellers are in Pall Mall, and smoke cigars so cosily,
And dream they climb the highest Alps, or rove the plains of Moselai,
The world for them has nothing new, they have explored all parts of it;
And now they are club-footed! and they sit and look at charts of it.

The present-day smoking-room at the Travellers' is a noble apartment, which was originally the coffee-room. It occupies the whole of the ground-floor front to the gardens of Carlton House Terrace, and is divided into three bays by the projection of square piers.

From Chapter 12:
There are still some people who share the Duke of Wellington's delusion that smoking promotes drinking, although experience proves the contrary, and historic evidence, especially as regards drinking after dinner, shows that it was the introduction of the cigar, followed by that of the cigarette, which absolutely killed the old, bad after-dinner habits. The Salvation Army do not enforce total abstinence from tobacco as well as from alcoholic drinks as a condition of membership or soldiership, but a member of the Army must be a non-smoker before he can hold any office in its rank, or be a bandsman, or a member of a "songster brigade." And in other religious organizations there are yet a few of the "unco' guid" who look askance at pipe or cigarette as if it were a device of the devil. But the numbers of these misguided folk become fewer every year.

From Chapter 10:
The earliest example of the use of a wooden pipe I have met with is dated 1765—but this was not in England. Many years ago the late Mr. A.J. Munby pointed out that Smollett, in one of his letters dated March 18, 1765, giving an account of his journey from Nice to Turin, describes how he ascended "the mountain Brovis," and on the top thereof met a Quixotic figure, whom he thus pictures: "He was very tall, meagre, and yellow, with a long hooked nose and twinkling eyes. His head was cased in a woollen nightcap, over which he wore a flapped hat; he had a silk handkerchief about his neck, and his mouth was furnished with a short wooden pipe, from which he discharged wreathing clouds of tobacco-smoke." This scarecrow turned out to be an Italian marquis; and no doubt the singularity of his smoking apparatus was of a piece with the singularity of his attire.