From Chapter 4:
There is a curious entry in Thomas Burton's diary of the proceedings of Cromwell's Parliament, which suggests that there may then have been the luxury of a members' smoking-room. Burton was a member of the Parliaments of Oliver and Richard Cromwell from 1656 to 1659, and made a practice—for which historical students have been and are much his debtors—of taking notes of the debates as he sat in the House. Members sometimes objected to and protested against this note-taking, but Burton quietly went on using his pencil, and though his summaries of speeches are often difficult to follow, argument and sense suffering by compression, he has preserved much very valuable matter. Referring to a debate on January 7, 1656-57, on an attempt to go behind the previously passed Act of Oblivion, the diarist records that "Sir John Reynolds had numbered the House, and said at rising there were 220 at the least, besides tobacconists." This can only mean that there were at least 220 members actually present in the House when it rose, not counting the "tobacconists" or smokers, who were enjoying their pipes, not in the Chamber itself, but in some conveniently adjoining place, which may have been a room for the purpose, or may simply have been the lobby referred to above in the extract from "Mercurius Pragmaticus."

From Chapter 7:
The London clergy seem to have smoked at one time as a matter of course at their gatherings at Sion College, their headquarters. An entry in the records under date February 14, 1682, relating to a Court Meeting, runs: "Paid Maddocks [the Messenger] for Attendinge and Pipes 6d." How long pipes continued to be concomitants of the meetings of the College's General Court I cannot say; but smoking and the annual dinners were long associated. At the anniversary feast in 1743 there were two tables to provide for, the total number of guests being about thirty, and two "corses" to each. The cost of the food, as Canon Pearce tells us in his excellent and entertaining book on the College and its Library, was £19 15s., or rather more than 13s. a head. The bill for wines and tobacco amounted to five guineas, or about 3s. 6d. a head, and for this modest sum the thirty convives enjoyed eleven gallons of "Red Oporto," one of "White Lisbon," and three of "Mountain," to the accompaniment of two pounds of tobacco (at 3s. 4d. the pound) smoked in "half a groce of pipes" (at 1s.).