It is a matter of no difficulty to account for these various effects of the winds in America. The north-west wind, from coming over such an immense tract of land, must necessarily be dry; and coming from regions eternally covered with mounds of snow and ice, it must also be cold. The north-east wind, from traversing the frozen seas, must be cold likewise; but from passing over such a large portion of the watry main afterwards, it brings damps and moistures with it. All those from the east are damp, and loaded with vapours, from the same cause. Southerly winds, from crossing the warm regions between the tropics, are attended with heat; and the south-west wind, from passing, like the north-west, over a great extent of land, is dry at the same time; none however is so dry as that from the north-west. It is said, but with what truth I cannot take upon me to say, that west of the Alleghany and Appalachian mountains, which are all in the same range, the south-west winds are cold and attended with rain. Those great extremes of heat and cold, observable on the eastern side of the mountains, are unknown to the westward of them. ------------------------------------------------------------------------ +LETTER + XIX. _Travelling in America without a Companion not pleasant.—Meet two English Gentlemen.—Set out together for Canada.—Description of the Country between Philadelphia and New York.—Bristol.—Trenton.—Princeton.—College there.—Some Account of it.—Brunswick.—Posaik Water-fall.—Copper Mine.—Singular Discovery thereof.—New York.—Description of the City.—Character and Manners of the Inhabitants.—Leave it abruptly on Account of the Fevers.—Passage up North River from New York to Albany.—Great Beauty of the North River.—West Point.—Highlands.—Gusts of Wind common in passing them.—Albany.—Description of the City and Inhabitants.—Celebration of the 4th of July.—Anniversary of American Independence._ MY DEAR SIR, Albany, July. [Sidenote: PLEASURES OF A COMPANION.]