at the edges, over the joint, as here shown. In our view, a rustic character is given to the design by covering the sides with slabs; the curved side out, tongued and grooved, without a fillet over the joint; or formed of logs placed vertically, and lathed and plastered on the inside. The sides diminish slightly upward. A rustic porch is also shown, the columns of cedar boles, with vines trained upon them. The door is battened, with braces upon the outside, curved as shown, with a strip around the edge. It is four feet wide, seven high, in two folds, one half to be used in inclement weather. The cornice projects two feet six inches, better to defend the boarding; and may show the ends of the rafters. Roof covered with tin, slate or shingles. Dripping eaves are intended, without gutters. The roof of an octagonal building of ordinary dimensions may with ease and perfect safety be constructed without tie beams or a garret floor (which is, in all cases of schoolhouses, waste room, very much increasing the exposure to fire, as well as the expense.) The wall-plates, in this case, become ties, and must be well secured, so as to form one connected hoop, capable of counteracting the pressure outward of the angular rafters. The sides of the roof will abut at top against a similar timber octagonal frame, immediately at the foot of the lantern cupola. This frame must be sufficient to resist the pressure inward of the roof (which is greater or less, as the roof is more or less inclined in its pitch,) in the same manner as the tie-plates must resist the pressure outward. This security is given in an easy and cheap manner; and may be given entirely by the roof boarding, if it is properly nailed to the angular rafters, and runs horizontally round the roof. By this kind of roof, great additional height is given to the room by camp-ceiling; that is, by planing the rafters and roofboards, or by lathing and plastering on a thin half-inch board ceiling, immediately on the underside of the rafters, as may be most economically performed. This extra height in the center will admit of low side-walls, from seven to ten feet in the clear, according to the size and importance of the building, and, at the same time, by the most simple

principle of philosophy, conduct the heated feul air up to the central aperture, which should be left open quite round the pipe of the stove, or open grate standing in the center of the room. This aperture and cap, with the ventilator, is shown by the figure adjoining, which is to a scale of half an inch to a foot. The ventilator is drawn raised, and the dotted lines show it let down upon the roof. It may be of any required size, say two feet wide and twelve inches high, sliding up and down between the stovepipe and an outward case, forming a cap to exclude water. This cap may be pushed up or let down by a rod affixed to the under edge, and lying against the smokepipe.

In the design given, the side-walls are ten feet high, and the lantern fifteen feet above the floor; eight feet in diameter, four feet

PIPE

high. The sashes may open for additional ventilation, if required, by turning on lateral pivots, regulated by cords attached to the edges above. breadth of each desk is seventeen inches, with a shelf beneath for books, and The an opening in the back to receive a slate. The highest desks are twentyseven inches, inclined to thirty, and the front forms the back of the seat before it. The seat is ten to twelve inches wide, fifteen high, and each pupil is allowed a space of two feet, side to side.

For the sake of variety, we have given a design in the pointed style, revised from a sketch by "" an amateur in architecture. Any rectangular plan will suit it; and the principles of light and ventilation dwelt upon in the description of the octagon design, may be adapted to this. The principal light

is from one large mullioned window in the rear end. The side openings are for air in summer-not glazed, but closed with tight shutters. The same ventilating cap is shown, and height is gained in the roof by framing with collar beams set up four or five feet above the eaves. The sides, if not of brick or stone, may be boarded vertically. as before described.

the "Manual on the Training System for Infant and Juvenile Schools." School System," and his " Education for the Young," and by Mr. Stow, in is nearly similar to the plan recommended by Mr. Wilderspin in his "Infant one of Chambers' Educational Course, published at Edinburgh, in 1840. It al for teachers in infant and primary schools, entitled "Infant Education," The following plan and explanations are condensed from a valuable manu

PLAN, &c., OF SCHOOL-ROOM AND GROUNDS FOR AN INFANT SCHOOL.

The house should stand in a dry and airy situation, large enough to allow a spacious play ground. No pains should be spared on this principal and paramount department of a proper infant school. The more extensive the ground may be, the better; but the smallest size for 200 children ought to be 100 feet in length, by at least 60 in breadth.] It should be walled round, not so much to prevent the children from straying, as to exclude intruders upon them, while at play: for this purpose, a wall or close paling, not lower than six feet high, will be found sufficient. With the exception of a flower border, from four to six feet broad all round, lay the whole ground, after leveling and draining it thoroughly, with small binding gravel, which must be always kept in repair, and well swept of loose stones. Watch the gravel, and prevent the children making holes in it to form pools in wet weather; dress the flower border, and keep it always neat; stock it well with flowers and shrubs, and make it as gay and beautiful as possible. Train on the walls cherry and other fruit trees and currant bushes; place some ornaments and tasteful decorations in different parts of the border-as a honeysuckle bower, &c., and separate the dressed ground from the graveled area by a border of strawberry plants, which may be protected from the feet of the children by a skirting of wood on the outside, three inches high, and painted green, all round the ground. Something even approaching to elegance in the dressing and decking of the playground, will afford a lesson which may contribute to refinement and comfort for life. It will lead not only to clean and comfortable dwellings, but to a taste for decoration and beauty, which will tend mainly to expel coarseness, discomfort, dirt, and vice, from the economy of the humbler classes.

For the excellent and safe exercise afforded by the Rotary Swing, erect, at the distance of thirty feet from each other, two posts or masts, from sixteen to eighteen feet high above the ground; nine inches diameter at the foot, diminishing to seven and a

half at top; of good wellseasoned, hard timber; charred with fire, about three feet under ground, fixed in sleepers, and bound at top with a strong iron hoop. In the middle of the top of the post is sunk perpendicularly a cylindrical hole, ten inches deep, and two inches in diameter, made strong by an iron ring two inches broad within the top, and by a piece of iron an inch thick to fill up the bottom, tightly fixed in. A strong pivot of iron, of diameter to turn easily in the socket described, but with as little lateral play as possible, is placed vertically in the hole, its upper end standing 4 inches above it. On this pivot, as an axle, and close to the top of the post, but so as to turn easily, is fixed a wheel of iron, twentyfour inches diameter, strengthened by four