The President’s house is in the western part of the city; and stands on a plot of twenty acres, forty-four feet above the Potomac. It is 170 feet front, and eighty-six deep; built of freestone, with Ionic pilasters. It was shown to us by one Martin Renehan, an Irishman; and as the President was absent, we visited all the rooms, which were meanly furnished—indeed, carpets and chair-bottoms worn out; a common pine dining-table, which the Prince de Joinville, Lord Ashburton, Lord Morpeth, Mr. Fox, and Mr. Pakenham, our present minister, with others, to the number of forty-four (they never have more), dined off. My house is much better furnished; and the President only keeps eighteen servants, including master of the household, &c. The private drawing-room is the best, but that is bad. We saw the bed General Harrison died in. We visited the Treasury department: this is a noble structure, 457 feet in length, and after the architecture of the temple of Minerva, at Athens. There are 250 rooms. It is adjoining the department of state. The Post-office is of the Corinthian style, marble front. The plan is a parallelogram, 204 feet in extent, and sixty-five wide. The Patent-office is 280 feet in length, and seventy in depth, where patents are taken out at the cost of 30 dollars. We saw one that astonished us not a little—a machine for making railways, called a Pile-driver, which makes a railway over a lake, swamp, or forest, and finishes it straight away. It is in operation in the southern states, and found to answer, at one-tenth the cost in England. It is so incredible, I will not describe it. There is another, called the Excavator, that bores through hills, &c. and quickens the work fiftyfold to manual labour. Both these are worked by steam, and the most incredible inventions I ever saw. Otis is the inventor of the latter. There is also a screw-patent in operation in Rhode Island. In the spacious room above are preserved Washington’s equipments