From Chapter 2:
smoking was soon as common in the country as in London. On Wednesday, April 16, 1621, in the course of a debate in the House of Commons, Sir William Stroud, who seems to have been a worthy disciple of that tobacco-hater, King James I, moved that he "would have tobacco banished wholly out of the kingdom, and that it may not be brought in from any part, nor used amongst us"; and Sir Grey Palmes said "that if tobacco be not banished, it will overthrow 100,000 men in England, for now it is so common that he hath seen ploughmen take it as they are at plough." Perhaps this terrible picture of a ploughman smoking as he followed his lonely furrow did not impress the House so much as Sir Grey evidently thought it would; at all events, tobacco was not banished.

From Chapter 8:
smoking was frowned upon, even in places where hitherto it had been allowed. In 1812 the authorities of Sion College ordered "that Coffee and Tea be provided in the Parlour for the Visitors and Incumbents, and in the Court Room for the Curates and Lecturers; and that Pipes and Tobacco be not allowed; and that no Wine be at any time carried into the Court Room, nor any into the Hall after Coffee and Tea shall have been ordered on that day."

The use of tobacco for smoking, as I have said, had reached its nadir—in the fashionable world, that is to say—but the dawn follows the darkest hour, and the revival of smoking was at hand, thanks to the cigar.