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 8:
No doubt smoking had its ups and downs at the Universities apart from the set of the main current of fashion. We learn from the invaluable Gunning that at Cambridge about 1786 smoking was going "out of fashion among the junior members of our combination-rooms, except on the river in the evening, when every man put a short pipe in his mouth." "I took great pains," he adds, "to make myself master of this elegant accomplishment, but I never succeeded, though I used to renew the attempt with a perseverance worthy of a better cause." About the same time Dr. Farmer was Master of Emmanuel and the Master was an inveterate smoker. Gunning says that Emmanuel parlour under Farmer's presidency was always open to those who loved pipes and tobacco and cheerful conversation—a very natural collocation of tastes. Farmer's silver tobacco-pipe is still preserved in his old college, while Porson's japanned snuff-box is at Trinity.