From Chapter 3:
The number of shops where tobacco was sold in the early days of its triumph seems to have been extraordinary. Barnaby Rich, one of the most prolific parents of pamphlets in an age of prolific writers, wrote a satire on "The Honestie of this Age," which was printed in 1614. In this production Rich declares that every fellow who came into an ale-house and called for his pot, must have his pipe also, for tobacco was then a commodity as much sold in every tavern, inn and ale-house as wine, ale, or beer. He goes on to say that apothecaries' shops, grocers' shops, and chandlers' shops were (almost) never without company who from morning to night were still taking tobacco; and what a number there are besides, he adds, "that doe keepe houses, set open shoppes, that have no other trade to live by but by the selling of tobacco." Rich says he had been told that a list had been recently made of all the houses that traded in tobacco in and near about London, and that if a man might believe what was confidently reported, there were found to be upwards of 7000 houses that lived by that trade; but he could not say whether the apothecaries', grocers' and chandlers' shops, where tobacco was also sold, were included in that number. He proceeds to calculate what the annual expenditure on smoke must be. The number of 7000 seems very large and is perhaps exaggerated. Round numbers are apt to be over rather than under the mark.

From Chapter 6:
Towards the close of the seventeenth century signs may be detected of some waning in the universal popularity of tobacco. There are hints of change in the records of City and other companies. Tobacco had always figured prominently in the provision for trade feasts. In 1651 the Chester Company of Barbers, Surgeons, Wax and Tallow Chandlers—a remarkably comprehensive organization—paid for "Sack beere and Tobacco" at the Talbot on St. Luke's Day, October 18, on the occasion of a dinner given to the Company by one Richard Walker; and similar expenditure was common among both London and provincial Companies. The court-books of the Skinners Company of London show that in preparation for their annual Election Dinner in 1694, the cook appeared before the court and produced a bill of fare which, with some alterations, was agreed to. The butler then appeared and undertook to provide knives, salt, pepper-pots, glasses, sauces, &c., "and everything needfull for £7. and if he gives content then to have £8. he provides all things but pipes, Tobacco, candles and beer"—which apparently fell to the lot of some other caterer.