From Chapter 1:
"Tarlton, as other gentlemen used, at the first comming up of tobacco, did take it more for fashion's sake than otherwise, and being in a roome, set between two men overcome with wine, and they never seeing the like, wondered at it, and seeing the vapour come out of Tarlton's nose, cryed out, fire, fire, and threw a cup of wine in Tarlton's face. Make no more stirre, quoth Tarlton, the fire is quenched: if the sheriffes come, it will turne to a fine, as the custome is. And drinking that againe, fie, sayes the other, what a stinke it makes; I am almost poysoned. If it offend, saies Tarlton, let every one take a little of the smell, and so the savour will quickly goe: but tobacco whiffes made them leave him to pay all."

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.