From Chapter 1:
"'It requires no effort of the fancy to picture these three men [Shakespeare, Bacon and Raleigh] as lounging in a window of Durham House, puffing the new Indian weed from silver bowls, discussing the highest themes in poetry and science, while gazing on the flower-beds and the river, the darting barges of dame and cavalier, and the distant pavilions of Paris garden and the Globe.'" This is a pure "effort of the fancy" so far as Bacon and Shakespeare are concerned. Shakespeare's absolute silence about tobacco forbids us to assume that he smoked; but of Raleigh the picture may be true enough. The house had, as Aubrey tells us, "a little turret that looked into and over the Thames, and had the prospect which is as pleasant perhaps as any in the world"; and it would be strange indeed if the owner of the noble house did not often smoke a contemplative pipe in the window of that pleasant turret.

From Chapter 5:
The French traveller, Sorbière, who visited London in 1663, declared that the English were naturally lazy and spent half their time in taking tobacco. They smoked after meals, he observed, and conversed for a long time. "There is scarce a day passes," he wrote, "but a Tradesman goes to the Ale-house or Tavern to smoke with some of his Friends, and therefore Public Houses are numerous here, and Business goes on but slowly in the Shops"; but, curiously enough, he makes no mention of coffee-houses. A little later they were too common and too much frequented to be overlooked. An English writer on thrift in 1676 said that it was customary for a "mechanic tradesman" to go to the coffee-house or ale-house in the morning to drink his morning's draught, and there he would spend twopence and consume an hour in smoking and talking, spending several hours of the evening in similar fashion.