From Chapter 3:
One of the most curious of the early publications on tobacco, in which an attempt is made to hold the balance fairly between the legitimate use and the "licentious" abuse of the herb, is Tobias Venner's tract with the long-winded title: "A Brief and Accurate Treatise concerning The taking of the Fume of tobacco, Which very many, in these dayes doe too licenciously use. In which the immoderate, irregular, and unseasonable use thereof is reprehended, and the true nature and best manner of using it, perspicuously demonstrated." Venner described himself as a doctor of physic in Bath, and his tract was published in London in 1637. Venner says that tobacco is of "ineffable force" for the rapid healing of wounds, cuts, sores and so on, by external application, but thinks little of its use for any other purpose. Like others of his school, he attacks the "licentious Tobacconists [smokers] who spend and consume, not only their time, but also their health, wealth, and witts in taking of this loathsome and unsavorie fume." He admits the popularity of the herb, but expresses his own personal objection to the "detestable savour or smack that it leaveth behind upon the taking of it"; from which one is inclined to surmise that the doctor's first pipe was not an entire success. With an evident desire to be fair, Venner, notwithstanding his dislike of the "savour," refuses to condemn tobacco utterly, because of what he considers its valuable medicinal qualities, and he goes so far as to give "10 precepts in the use of" tobacco. The sixth is "that you drink not between the taking of the fumes, as our idle and smoakie Tobacconists are wont"—there must be no alliance, in short, between the pipe and the cheerful glass. The tenth and last precept is "that you goe not abroad into the aire presently [immediately] upon the taking of the fume, but rather refrain therefrom the space of halfe an houre, or more, especially if the season be cold, or moist." The suggestion that the smoker, when he has finished his pipe, shall wait for half an hour or so before he ventures into the outer air is very quaint.

From Chapter 8:
In the whole sixteen volumes of Walpole's correspondence, as so admirably edited by Mrs. Toynbee, there is scarcely a mention of tobacco; and the same may be said of other collections of letters of the same period—the Selwyn letters, the Delany correspondence, and so on. Neither Walpole nor any member of the world in which he lived would appear to have smoked. In Miss Burney's "Evelina," 1778, from the beginning to the end of the book there is no mention whatever of tobacco or of smoking. Apparently the vulgar Branghtons were not vulgar enough to smoke. Such use of tobacco was considered low, and was confined to the classes of society indicated in the preceding chapter. One of the characters in Macklin's "Love à la Mode," 1760, is described as "dull, dull as an alderman, after six pounds of turtle, four bottles of port, and twelve pipes of tobacco."