There is a United States arsenal at Little Rock; the Government Post-office is a handsome building, and among the twenty-seven churches there are some of pleasing architecture. The State-house, which stands upon the bluff overlooking the river, is a relic of old times, suggesting the easy-going plantation style. It is an indescribable building, or group of buildings, with classic pillars of course, and rambling galleries that lead to old-fashioned, domestic-looking State offices. It is shabby in appearance, but has a certain interior air of comfort. The room of the Assembly—plain, with windows on three sides, open to the sun and air, and not so large that conversational speaking cannot be heard in it—is not at all the modern notion of a legislative chamber, which ought to be lofty, magnificently decorated, lighted from above, and shut in as much as possible from the air and the outside world. Arkansas, which is rapidly growing in population and wealth, will no doubt very soon want a new State-house. Heaven send it an architect who will think first of the comfortable, cheerful rooms, and second of imposing outside display! He might spend a couple of millions on a building which would astonish the natives, and not give them as agreeable a working room for the Legislature as this old chamber. The fashion is to put up an edifice whose dimensions shall somehow represent the dignity of the State, a vast structure of hall-ways and staircases, with half-lighted and ill-ventilated rooms. It seems to me that the American genius ought to be able to devise a capitol of a different sort, certainly one better adapted to the Southern climate. A group of connected buildings for the various departments might be better than one solid parallelogram, and I have a fancy that legislators would be clearer-headed, and would profit more by discussion, if they sat in a cheerful chamber, not too large to be easily heard in, and open as much as possible to the sun and air and the sight of tranquil nature. The present Capitol has an air of lazy neglect, and the law library which is stored in it could not well be in a worse condition; but there is something rather pleasing about the old, easy-going establishment that one would pretty certainly miss in a smart new building. Arkansas has an opportunity to distinguish itself by a new departure in State-houses.