From Chapter 4:
Gardiner evidently follows this account, for his version of the story is: "Newcastle strolled towards his coach to solace himself with a pipe. Before he had time to take a whiff, the battle had begun." The incident was made the subject of a picture by Ernest Crofts, A.R.A., which was exhibited at the Royal Academy in 1888. It shows the Duke leaning out of his carriage window, with his pipe in his hand.

From Chapter 6:
The attractions and the atmosphere of provincial coffee-houses were much the same as those of the London resorts. A German gentleman who visited Cambridge in July and August 1710 remarked that in the Greeks' coffee-house in that town, in the morning and after 3 o'clock in the afternoon, you could meet the chief professors and doctors, who read the papers over a cup of coffee and a pipe of tobacco. One of the learned doctors took the German visitor to the weekly meeting of a Music Club in one of the colleges. Here were assembled bachelors, masters and doctors of music of the University—no professionals were employed—who performed vocal and instrumental music to their mutual gratification, though, apparently, not to the satisfaction of the visitor, who records his opinion that the music was "very poor." "It lasted," he says, "till 11 P.M., there was besides smoking and drinking of wine, though we did not do much of either. At 11 the reckoning was called for, and each person paid 2s."