From Chapter 2:
It chaunc'd me gazing at the Theater,
To spie a Lock-Tabacco Chevalier
Clowding the loathing ayr with foggie fume
Of Dock Tobacco friendly foe to rhume—

says a versifier of 1599, who did not like smoking in the theatre and so abused the quality of the tobacco smoked—though admitting its medicinal virtue. Dekker suggests, probably with truth, that one reason why the young gallant liked to push his way to a stool on the stage, notwithstanding "the mewes and hisses of the opposed rascality"—the "mewes" must have been the squeals or whistles produced by the instrument which was later known as a cat-call—was the opportunity such a prominent position afforded for the display of "the best and most essential parts of a gallant—good cloathes, a proportionable legge, white hand, the Persian lock, and a tolerable beard." Apparently, too, serving-boys were within call, and thus lights could easily be obtained, which were handed to one another by the smokers on the points of their swords.

From Chapter 5:
When plague was abroad even children were compelled to smoke. At the time of the dreadful visitation of 1665 all the boys at Eton were obliged to smoke in school every morning. One of these juvenile smokers, a certain Tom Rogers, years afterwards declared to Hearne, the Oxford antiquary, that he never was whipped so much in his life as he was one morning for not smoking. Times have changed at Eton since this anti-tobacconist martyr received his whipping. It is sometimes stated that at this time smoking was generally practised in schools, and that at a stated hour each morning lessons were laid aside, and masters and scholars alike produced their pipes and proceeded to smoke tobacco. But I know of no authority for this wider statement; it seems to have grown out of Hearne's record of the practice at Eton.