[Footnote 74:  The writer of the Relation of Teneriffe, in Sprat’s History, p. 207, takes notice of this lemon as produced here, and calls it Pregnada.  Probably, emprennada, the Spanish word for impregnated, is the name it goes by.—­D.]

“From him I learnt also, that a certain sort of grape growing here, is reckoned an excellent remedy in phthisical complaints; and the air and climate, in general, are remarkably healthful, and particularly adapted to give relief in such diseases.  This he endeavoured to account for, by its being always in one’s power to procure a different temperature of the air, by residing at different heights in the island; and he expressed his surprise that the English physicians should never have thought of sending their consumptive patients to Teneriffe, instead of Nice or Lisbon.  How much the temperature of the air varies here, I myself could sensibly perceive, only in riding from Santa Cruz up to Laguna; and you may ascend till the cold becomes intolerable.  I was assured that no person can live comfortably within a mile of the perpendicular height of the Pic, after the month of August."[75]

[Footnote 75:  This agrees with Dr T. Heberden’s account, who says that the sugar-loaf part of the mountain, or la pericosa, (as it is called,) which is an eighth part of a league (or 1980 feet) to the top, is covered with snow the greatest part of the year.  See Philosophical Transactions, as quoted above.—­D.]

“Although some smoke constantly issues from near the top of the Pic, they have had no earthquake or eruption of a volcano since 1704, when the port of Garrachica, where much of their trade was formerly carried on, was destroyed."[76]

[Footnote 76:  This port was then filled up by the rivers of burning lava that flowed into it from a volcano; insomuch that houses are now built where ships formerly lay at anchor.  See Glas’s History, p. 244.—­D.]

“Their trade, indeed, must be considered as very considerable; for they reckon that forty thousand pipes of wine are annually made, the greatest part of which is either consumed in the island, or made into brandy, and sent to the Spanish West Indies.[77] About six thousand pipes were exported every year to North America, while the trade with it was uninterrupted; at present, they think not above half the quantity.  The corn they raise is, in general, insufficient to maintain the inhabitants; but the deficiency used to be supplied by importation from the North Americans, who took their wines in return.”

[Footnote 77:  Glas, p. 342, says, that they annually export no less than fifteen thousand pipes of wine and brandy.  In another place, p. 252, he tells us, that the number of the inhabitants of Teneriffe, when the last account was taken, was no less than 96,000.  We may reasonably suppose that there has been a considerable increase of population since Glas visited the island, which is above thirty years