From Chapter 3:
It would seem, from one example I have noted, as if in some places smoking were not allowed in public-houses. In the account-book of St. Stephen's Church and Parish, Norwich, the income for the year 1628-29 included on one occasion 20s. received by way of fine from one Edmond Nockals for selling a pot of beer "wanting in measure, contrary to the law," and another sovereign from William Howlyns for a like offence. This is right and intelligible enough; but on another occasion in the same year each of these men, who presumably were ale-house keepers, had to pay 30s.—a substantial sum considering the then value of money—for the same offence and "for suffering parishioners to smoke in his house." I have been unable to obtain any information as to why a publican should have been fined an additional 10s. for the heinous offence of allowing a brother parishioner to smoke in his house.

From Chapter 8:
smoking had certainly not died out at Cambridge, even at the time when Denison was at Oxford. According to the "Gradus ad Cantabrigium," 1824, the Cambridge smart man's habit was to dine in the evening "at his own rooms, or at those of a friend, and afterwards blows a cloud, puffs at a segar, and drinks copiously." The spelling of "segar" shows that cigars were then somewhat of a novelty.