The _post office_ is a large brick edifice, situated at about an equal distance from the president's house and the capitol. Under the same roof is the patent-office, and the national library, for the use of members of the congress. In 1817 there were, in Washington, many brick buildings, two and three stories high. There were also some small wooden houses; though, according to the original plan, no houses were to be built less than three stories high, and all were to have marble steps. The _river Potomac_, at Washington, is navigable only for small craft; but, besides this, there is a river, about the width of the Paddington canal, which is dignified by the name of _Tiber_. The ridiculous, though characteristic vanity displayed in changing its original appellation from "Goose-creek" to that of "Tiber," has been happily exposed by the English poet Moore. Speaking of this city, he says, In fancy now, beneath the twilight gloom, Come, let me lead thee o'er this modern Rome, Where tribunes rule, where dusky Davi bow, And what was Goose-creek once is Tiber now. This fam'd metropolis, where fancy sees Squares in morasses, obelisks in trees. There are, at Washington, four market-days in the week, and negroes are the chief sellers of provisions; but the supplies are neither good nor various. In this city rents are very high; and mechanics are fully employed and well paid. Shopkeepers too are numerous; but its increase cannot be rapid, for it has no decidedly great natural advantages. It has little external commerce, a barren soil, and a scanty population; is enfeebled by the deadly weight of absolute slavery, and has no direct communication with the western country. With regard to the manners of the _inhabitants_, it is remarked that both sexes, whether on horseback or on foot, carry umbrellas at all seasons: in summer, to keep off the sunbeams; in winter, as a shelter from the rain and snow; and in spring and autumn, to intercept the dews of the evening. At dinner and at tea parties, the ladies sit together, and seldom mix with the gentlemen, whose conversation usually turns upon political subjects. In almost all houses toddy, or spirits and water, is offered to guests a few minutes before dinner. Boarders in boarding-houses, or in taverns, sometimes throw off their coats during the heat of summer; and, in winter, their shoes, for the purpose of warming their feet at the fire; customs which the climate only can excuse. The barber always arrives on horseback, to perform the operation of shaving; and here, as in some towns of Europe, he is the organ of all the news and scandal of the place.