Our remarks upon the strength and durability of _material_ in house-building do not apply exclusively to brick and stone. Wood is included also; and of this, there is much difference in the kind. Sound _white_ oak, is, perhaps the best material for the heavy frame-work of any house or out-building, and when to be had at a moderate expense, we would recommend it in preference to any other. If _white_ oak cannot be had, the other varieties of oak, or chesnut are the next best. In _light_ frame-timbers, such as studs, girts, joists, or rafters, oak is inclined to spring and warp, and we would prefer hemlock, or chesnut, which holds a nail equally as well, or, in its absence, pine, (which holds a nail badly,) whitewood, or black walnut. The outside finish to a wooden house, may be _lighter_ than in one of stone or brick. The wood work on the outside of the latter should always be heavy, and in character with the walls, giving an air of firmness and stability to the whole structure. No elaborate carving, or beadwork should be permitted on the outside work of a country house at all; and only a sufficient quantity of ornamental _tracery_ of any kind, to break the monotony of a plainness that would otherwise give it a formal, or uncouth expression, and relieve it of what some would consider a pasteboard look. A farm house, in fact, of any degree, either cheap or expensive, should wear the same appearance as a well-dressed person of either sex; so that a stranger, not looking at them for the purpose of inspecting their garb, should, after an interview, be unable to tell what particular sort of dress they wore, so perfectly in keeping was it with propriety.