From Chapter 3:
Taking the whiff, it has been suggested, may have been either a swallowing of the smoke, or a retaining it in the throat for a given space of time; but what may be meant by the "Cuban ebolition" or the "euripus" is perhaps best left to the imagination. "Ebolition" is simply a variant of "ebullition," and "ebullition," as applied with burlesque intent to rapid smoking—the vapour bubbling rapidly from the pipe-bowl—is intelligible enough, but why Cuban? "Euripus" was the name, in ancient geography, of the channel between Eubœa (Negropont) and the mainland—a passage which was celebrated for the violence and uncertainty of its currents—and hence the name was occasionally applied by our older writers to any strait or sea-channel having like characteristics. The use of the word in connexion with tobacco may, like that of "ebolition," have some reference to furious smoking, but the meaning is not clear.

From Chapter 7:
The antiquary Hearne has left on record an account of a curious smoking match held at Oxford in 1723. It began at two o'clock in the afternoon of September 4 on a scaffold specially erected for the purpose "over against the Theatre in Oxford ... just at Finmore's, an alehouse." The conditions were that any one (man or woman) who could smoke out three ounces of tobacco first, without drinking or going off the stage, should have 12s. "Many tryed," continues Hearne, "and 'twas thought that a journeyman taylour of St. Peter's in the East would have been victor, he smoking faster than, and being many pipes before, the rest: but at last he was so sick, that 'twas thought he would have dyed; and an old man, that had been a souldier, and smoaked gently, came off conqueror, smoaking the three ounces quite out, and he told one (from whom I had it) that, after it, he smoaked 4 or 5 pipes the same evening." The old soldier was a well-seasoned veteran.