From Chapter 4:
We know also that the Roundhead soldiers smoked in circumstances that did them no credit. In the account of the trial of Charles I, written by Dr. George Bates, principal physician to his Majesty, and to Charles II also, we read that when the sentence of the Court presided over by Bradshaw, condemning the King "to death by severing his Head from his Body," had been read, the soldiers treated the fallen monarch with great indignity and barbarity. They spat on his clothes as he passed by, and even in his face; and they "blew the smoak of tobacco, a thing which they knew his Majesty hated, in his sacred mouth, throwing their broken Pipes in his way as he passed along."

From Chapter 8:
Notwithstanding the unfashionableness of tobacco, there were still some noteworthy smokers to be found among the clergy. Dr. Sumner, head master of Harrow, who died in 1771, was devoted to his pipe. The greatest of clerical "tobacconists" of late eighteenth century and early nineteenth century date was the once famous Dr. Parr. It was from him that Dr. Sumner learned to smoke. When he and Parr got together Sumner was in the habit of refilling his pipe again and again in such a way as to be unobserved, at the same time begging Parr not to depart till he had finished his pipe, in order that he might detain him, we are told, in the evening as long as possible.