four extra binders nailed to the top of the crib (E, F, G, H, Fig. 88), will give finish to the structure, especially if they are floored over to the edge of the top floor, thus making a step at the surface or under the water. Stairs may be built, as shown in Fig. 88. On hard bottoms they are anchored at the lower end by a large stone placed upon a board, which joins the lower ends of the side-boards; but on soft bottoms the stairs may be first nailed to two stakes, which are afterward driven into the mud. Fig. 90 shows the platform finished, and skeleton house erected. To build this house place the two two-inch by four-inch strips, J, N and M, Q, on the platform at the required distance apart, and “toe-nail” them in place--driving the nails slantingly from the sides into the floor (Fig. 92). [Illustration: FIGS. 90-92--Frame of House.] Temporary Diagonal Braces may be used until you have your skeleton house far enough advanced to fit in some horizontal cross-pieces between the uprights, and to “toe-nail” them in place. Put in two sets of braces on each side, one above and one below the window openings, and in the front frame, J, K, L, M, one over the proposed doorway, and two more in the rear frame, N, O, P, Q, the latter extending from the upright, N, O, to the upright P, Q, and parallel to N, Q, as explained by Fig. 91. When these braces are in place your frame will be stiff enough to nail on the sidings of slabs, boards or poles, and after they are in position the roof may be put on with no fear of the structure’s falling. The roof may be made of boards, as described in the underground club-house. An Artificial Island can be made, by erecting the corner cribs and bracing them, as described for the club-house, and then packing brush, loaded with stones, between the boundaries of the foundation. Lay the brush with the stems pointing one way and place stones on top, one layer of weighted brush over another, until you have reached a level two feet above the water. Cover the top brush with hay, straw, or old leaves, and place a layer of sods over the leaves. Upon this foundation you can place as much earth as your industry will permit, and you will have a substantial little island, upon which grass or plants will grow, and beneath which the little fishes can live amid the submerged brush. [Illustration: Moving in for the Summer.] CHAPTER X. HOW TO HAVE FUN AT A PICNIC. If feasible take hammocks and ropes for swings along with you and don’t forget a “Joggling-Board.” This is a very popular invention, from South Carolina, and consists of a pine or hemlock plank, one inch thick, one foot wide and ten feet long, which, when supported at each end by solid supports, or ropes from the limb of a tree, forms a seat which responds to every movement of the person sitting in the centre, with a gentle, delightful joggle. [Illustration: The Joggling Board.]