Cut a door in one of these side walls, near its central part, where you see the door in the picture of Boxville School. To make this, first take pencil and ruler and make an oblong four inches high and two inches wide. (To cut door, see Diagram Two, _A_, page 167.) Cut top line, down one side line, and across the base line. Fold the door outward. The cardboard under the door in the side wall may be cut out the shape of the door space. If you do this, your door will bend open more easily. If you happen to have a round-headed paper-fastener, press its pointed prongs through the little door where a door-knob should go. The round head of the paper-fastener will form a door-knob. Its prongs, bent to one side, form the latch. It will catch the door securely when the “door-knob” is turned. Now that the lower part of the school building is finished, you may begin upon the roof. This is the box cover. Place it upon the points of the side walls so that it fits down upon them. You will readily see how this is. (For placing a roof on a shoe-box building, see Diagram Three, _AA_, page 168.) When the roof is placed, you will be able to judge where the chimney-hole should be cut in the box-cover roof. It should go near the top at the end of the box that is opposite the door. The cover of some narrow box which has a sliding inner drawer will make the chimney. It will be just the right shape, square and hollow. Mark off upon the sides of this box the bricks of the chimney. Color them red, if you like. If you use a ruler, the work is easily and quickly done. You do not need to mark the bricks unless you like. Your box may be painted merely. To place it on the roof, you will need to cut out of the school-house roof a piece of cardboard the size of the end of your box. Decide where the chimney should go. Mark the end of it with pencil upon the roof at this point. Cut the cardboard out. (For cutting hole for chimney in a box-cover roof, see Diagram Three, _AA_, page 168.) Press the end of the chimney down through this hole. Press the chimney backward to make it stand straight, and glue it. Some tiny bit of cotton stuffed into the upper hole of the chimney box will form smoke. Of course, you will be anxious to furnish your school-house inside. You may make it like a real district school such as you see in the country. It will have desks, benches, a stove, and a blackboard—to say nothing of a teacher’s desk and chair! The lower halves of the three small boxes form desks. It is really a simple matter to make these. They are the kind that have a shelf beneath the top. They are open. Take the lower half of one of these boxes. Place it upon one of its long rims. The upper rim will be the top of the desk. The ends of the box will need to be cut the shape of the sides of a desk. (For cutting a desk out of a small oblong cardboard box, see Diagram Six, _E_, page 179.)