[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 ago. The quantity of wine annually consumed, as the common beverage of at least one hundred thousand persons, must amount to several thousand pipes. There must be a vast expenditure of it, by conversion into brandy; to produce one pipe of which, five or six pipes of wine must be distilled. An attention to these particulars will enable every one to judge, that the account given to Mr Anderson, of an annual produce of 40,000 pipes of wine, has a foundation in truth.--D.]