From Chapter 1:
The truth probably is that whoever actually smoked the first pipe, it was Raleigh who brought the practice into common use. It is highly probable, also, that Raleigh was initiated in the art of smoking by Thomas Hariot. This was made clear, I think, by the late Dr. Brushfield in the second of the valuable papers on matters connected with the life and achievements of Sir Walter, which he contributed under the title of "Raleghana" to the "Transactions" of the Devonshire Association. Hariot was sent out by Raleigh for the specific purpose of inquiring into and reporting upon the natural productions of Virginia. He returned in 1586, and in 1588 published the results of his researches in a thin quarto with an extremely long-winded title beginning "A briefe and true report of the new found land of Virginia" and continuing for a further 138 words.

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."