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 5:
smokers of the period were often curious in tobacco-boxes. Mr. Richard Stapley, gentleman, of Twineham, Sussex, whose diary is full of curious information, was presented in 1691 by his friend Mr. John Hill with a "tobacco-box made of tortoise." Seven years earlier Stapley had sold to Hill his silver tobacco-box for 10s. in cash—the rest of the value of the box, he noted, "I freely forgave him for writing at our first commission for me, and for copying of answers and ye like in our law concerns; so yt I reckon I have as good as 30s. for my box: 5s. he gave me, and 5s. more he promised to pay me ... and I had his steel box with the bargain, and full of smoake." Apparently Mr. Hill's secretarial labours were valued at 20s. This same Sussex squire bought a pound of tobacco in December 1685 for 20d., which seems decidedly cheap, and in the following year a 5 lb. box for 7s. 6d.—which was cheaper still.