From Chapter 1:
The form and make of the first pipe is a matter I do not propose to go into here; but in connexion with the first pipe smoked in this country Aubrey's interesting statements must be given. Writing in the time of Charles II, he said that he had heard his grandfather say that at first one pipe was handed from man to man round about the table. "They had first silver pipes; the ordinary sort made use of a walnut shell and a straw"—surely a very unsatisfactory pipe. Tobacco in those earliest days, he says, was sold for its weight in silver. "I have heard some of our old yeomen neighbours say that when they went to Malmesbury or Chippenham Market, they culled out their biggest shillings to lay in the scales against the tobacco."

From Chapter 6:
Even children seem to have smoked sometimes in the coffee-houses. Ralph Thoresby, the Leeds antiquary, tells a strange story. He declares that, one evening which he spent with his brother at Garraway's Coffee-house, February 20, 1702, he was surprised to see his brother's "sickly child of three years old fill its pipe of tobacco and smoke it as audfarandly as a man of three score; after that a second and a third pipe without the least concern, as it is said to have done above a year ago." A child of two years of age smoking three pipes in succession is a picture a little difficult to accept as true. As this is the only reference to tobacco in the whole of his "Diary," it is not likely that Thoresby was himself a smoker.