From Chapter 1:
It may further be added that though the use of tobacco was known and practised on the continent of Europe for some time before smoking became common in England—it was taken to Spain from Mexico by a physician about 1560, and Jean Nicot about the same time sent tobacco seeds to France—yet such use was exclusively for medicinal purposes. The smoking of tobacco in England seems from the first to have been much more a matter of pleasure than of hygiene.

From Chapter 6:
There was indeed no diminution of tobacco-smoke in the coffee-houses. A visitor from abroad, Mr. Muralt, a Swiss gentleman, writing about 1696, said that character could be well studied at the coffee-houses. He was probably not a smoker himself, for he goes on to say that in other respects the coffee-houses are "loathsome, full of smoke like a guardroom, and as much crowded." He further observed that it was common to see the clergy of London in coffee-houses and even in taverns, with pipes in their mouths. A native witness of about the same date, Ned Ward, writes sneeringly in his "London Spy," 1699, of the interior of the coffee-house. He saw "some going, some coming, some scribbling, some talking, some drinking, some smoking, others jingling; and the whole room stinking of tobacco, like a Dutch scoot, or a boatswain's cabin.... We each of us stuck in our mouths a pipe of sotweed, and now began to look about us." Ward's contemporary, Tom Brown, took a different tone: he wrote of "Tobacco, Cole and the Protestant Religion, the three great blessings of life!"—as strange a jumble as one could wish for.