From Chapter 4:
Some of the Puritan colonists in America took a strong line on the subject. Under the famous "Blue Laws" of 1650 it was ordered by the General Court of Connecticut that no one under twenty-one was to smoke—"nor any other that hath not already accustomed himself to the use thereof." And no smoker could enjoy his pipe unless he obtained a doctor's certificate that tobacco would be "usefull for him, and allso that he hath received a lycense from the Courte for the same." But the unhappy smoker having passed the doctor and obtained his licence was still harassed by restrictions, for it was ordered that no man within the colony, after the publication of the order, should take any tobacco publicly "in the streett, highwayes, or any barn-yardes, or uppon training dayes, in any open places, under the penalty of six-pence for each offence against this order." The ingenuities of petty tyranny are ineffable. It is said that these "Blue Laws" are not authentic; but if they are not literally true, they are certainly well invented, for most of them can be paralleled and illustrated by laws and regulations of undoubted authenticity.

From Chapter 6:
Other well-known men of the late seventeenth century were "tobacconists" in the old sense of the word. Sir Isaac Newton is said to have smoked immoderately; and a familiar anecdote represents him as using for the purposes of a tobacco-stopper, in a fit of absent-mindedness, the little finger of a lady sitting beside him, whom he admired, but the truth of this legend is open to doubt. Thomas Hobbes, who lived to be ninety (1588-1679), was accustomed to dine at 11 o'clock, after which he smoked a pipe and then lay down and took a nap of about half an hour. No doubt he would have attributed the length of his days to the regularity of his habits. Izaak Walton, who also lived to be ninety, as the lover of the placid and contemplative life deserved to do, loved his pipe, though he seldom mentions smoking in the "Compleat Angler." Sir Samuel Garth, poet and physician, once known to fame as the author of "The Dispensary," was another pipe-lover, as is shown by his verses quoted at the head of this chapter. Dudley, the fourth Lord North, began to smoke in 1657, and, says Dr. Jessopp, "the habit grew upon him, the frequent entries for pipes and tobacco showing that he became more and more addicted to this indulgence. Probably it afforded him some solace in the dreadful malady from which he suffered so long."