From Chapter 2:
Tobacco was smoked by all classes and in almost all places. It was smoked freely in the streets. In some verses prefixed to an edition of Skelton's "Elinour Rumming" which appeared in 1624, the ghost of Skelton, who was poet-laureate to King Henry VIII, was made to say that he constantly saw smoking:

As I walked between
Westminster Hall
And the Church of Saint Paul,
And so thorow the citie,
Where I saw and did pitty
My country men's cases,
With fiery-smoke faces,
Sucking and drinking
A filthie weede stinking.

Tobacco-selling was sometimes curiously combined with other trades. A Fleet Street tobacconist of this time was also a dealer in worsted stockings. A mercer of Mansfield who died at the beginning of 1624, and who apparently carried on business also at Southwell, had a considerable stock of tobacco. In the Inventory of all his "cattalles and goods" which is dated 24 January 1624, there is included "It. in Tobacco 19.li 0. 0." Nineteen pounds' worth of tobacco, considering the then value of money, was no small stock for a mercer-tobacconist to carry.

From Chapter 6:
Thackeray pictures Dryden as sitting in his great chair at Will's Coffee-house, Russell Street, Covent Garden, tobacco-pipe in hand; but there is no evidence that Dryden smoked. The snuff-box was his symbol of authority. Budding wits thought themselves highly distinguished if they could obtain the honour of being allowed to take a pinch from it. Of Dr. Aldrich, who was Dean of Christ Church, Oxford, and who wrote a curious "Catch not more difficult to sing than diverting to hear, to be sung by four men smoaking their pipes," an anecdote has often been related, which illustrates his devotion to the weed. A bet was made by one undergraduate and taken by another, that at whatever time, however early, the Dean might be visited in his own den, he would be found smoking. As soon as the bet had been made the Dean was visited. The pair explained the reason for their call, when Aldrich, who must have been a good-tempered man, said, "Your friend has lost: I am not smoking, only filling my pipe."