From Chapter 3:
It is uncertain when licences were first issued for the sale of tobacco. Probably they were issued in London some time before it was considered necessary to license dealers in other parts of the country. Among the Municipal Records of Exeter is the following note: "358. Whitehall, 31 August 1633. The Lords of the Council to the Chamber. 'Whereas his Ma^tie to prevent the excesse of the use of tobacco, and to set an order to those that regrate and sell or utter it by retayle, who observe noe reasonable rates or prizes [prices], nor take care that it be wholsome for men's bodyes that shall use it,' has caused letters to be sent to the chief Officers of Citties and towns requiring them to certify 'in what places it might be fitt to suffer ye retayleing of tobacco and how many be licenced in each of those places to use trade'; and the City of Exeter having made a return the Lords sent a list of those which are to be licensed, and order that no others be permitted to sell."

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."