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.

From Chapter 13:
It has sometimes been supposed that the companion of Swift's Stella, Mrs. Rebecca Dingley, was addicted to smoking. In the letters which make up the famous "Journal to Stella," there are several references by Swift to the presents of tobacco which he was in the habit of sending to Mrs. Dingley. On September 21, 1710, he wrote: "I have the finest piece of Brazil tobacco for Dingley that ever was born." In the following month he again had a great piece of Brazil tobacco for the same lady, and again in November: "I have made Delaval promise to send me some Brazil tobacco from Portugal for you, Madam Dingley." In December, Swift was expressing his hope that Dingley's tobacco had not spoiled the chocolate which he had sent for Stella in the same parcel; and three months later he wrote: "No news of your box? I hope you have it, and are this minute drinking the chocolate, and that the smell of the Brazil tobacco has not affected it." The explanation of all this tobacco for Mistress Dingley is to be found in Swift's letter to Stella of October 23, 1711. "Then there's the miscellany," he writes, "an apron for Stella, a pound of chocolate, without sugar, for Stella, a fine snuff-rasp of ivory, given me by Mrs. St. John for Dingley, and a large roll of tobacco which she must hide or cut shorter out of modesty, and four pair of spectacles for the Lord knows who." The tobacco was clearly not for smoking, but for Dingley to operate upon with the snuff-rasp, and so supply herself with snuff—a luxury, which in those days, was as much enjoyed and as universally used by women as by men.