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 7:
Warton and another Oxford smoker of some distinction—the Rev. William Crowe, who was Public Orator from 1784 to 1829—are both said to have been, like Prior, rather fond of frequenting the company of persons of humble rank and little education, with whom they would drink their ale and smoke their pipes.

Mr. A.D. Godley, in his "Oxford in the Eighteenth Century," gives an excellent English version of the Latin original of one of the Christ Church "Carmina Quadragesmalia," which affords much the same picture of the daily life of an Oxford Fellow in the days when George I was king. This good man lives strictly by rule, and each returning day—

Ne'er swerves a hairbreadth from the same old way.
Always within the memory of men
He's risen at eight and gone to bed at ten:
The same old cat his College room partakes,
The same old scout his bed each morning makes:
On mutton roast he daily dines in state
(Whole flocks have perished to supply his plate),
Takes just one turn to catch the westering sun,
Then reads the paper, as he's always done;
Soon cracks in Common-room the same old jokes,
Drinking three glasses ere three pipes he smokes:—
And what he did while Charles our throne did fill
'Neath George's heir you'll find him doing still.