From Chapter 4:
Among the documents in the possession of the Society of Antiquaries of Scotland there is a letter patent under the great seal of Charles I, in 1634, granted for the purpose of correcting the irregular sales and restraining the immoderate use of tobacco in Scotland. The letter states that tobacco was used on its first introduction as a medicine, but had since been so largely indulged in and was frequently of such bad quality, as not only to injure the health, but deprave the morals of the King's subjects. These were sentiments worthy of King James. Mr. Matthew Livingstone, who has calendared this document, says that the King therein proceeds, in order to prevent such injurious results of the use of tobacco, to appoint Sir James Leslie and Thomas Dalmahoy to enjoy for seven years the sole power of appointing licensed vendors of the commodity. These vendors, after due examination as to their fitness, were to be permitted, on payment of certain compositions and an annual rent in augmentation of the King's revenue, to sell tobacco in small quantities. The letter further directs that the licensees so appointed shall become bound to sell only sound tobacco—an admirable provision, if a trifle difficult to enforce—and to keep good order in their houses and shops. "The latter clause," adds Mr. Livingstone, "would almost suggest that the tobacco was to be sold for consumption on the premises,"—as I have no doubt it was—"and that the smokers were probably in the habit at their symposiums of using, even as they may still, I dare say, other indulgences not so soothing in their effects as the coveted weed"—a suggestion for which there seems little foundation in the clause to which Mr. Livingstone refers.

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.