From Chapter 2:
Sir Francis Vere, in the account of his services by sea and land which he wrote about 1606, mentions that on an expedition to the Azores in 1597, the Earl of Essex, waiting for news of the enemy at St. Michael, "called for tobacco ... and so on horseback, with those Noblemen and Gentlemen on foot beside him, took tobacco, whilst I was telling his Lordship of the men I had sent forth, and orders I had given." Presently came the sound of guns, which "made his Lordship cast his pipe from him, and listen to the shooting."

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.