Construct the frame-work of wood, and fill up the outline with old be ale-corks. The various projections. he cesses, and other minutiae, must be affixed afterwards with glue, after being formed of cork, or hollowed out in the necessary parts, either by burnin with a hot wire and scraping it after;cards, or by means of a sharp-pointed bradawl.

1942. If small cork models a?e constructed, the trees should be formed by transfixing short pieces of shaded chenille with a fine wire (.), and sticking them into the cork.

1943. Various parts of the model must be touched up with oil, water, or varnish colours; and powdered brick, slate, and chopped lichen or moss, dusted on as usual.

1944. Wooden models are constructed roughly in deal, according to the proper design, and the various fine parts afterwards affixed with glue or brads.

1945. In forming the finer parts of the wooden model, a vast amount of unnecessary labour may be saved, and a better effect obtained, by burning much of the outline instead of carving it. By this plan deeper tones of colouring, facility of operating, and saving of time and labour, are the result.

1946. In common with other models, those constructed of wood, require the aid of lichen, moss, powdered slate, etc, and colours, to complete the effect.

1947. When water issues from the original cave, and it is desirable to copy it in the model, a piece of looking-glass should be glued on the stand, and the edges surrounded by glue, and paper covered with sand. Sometimes it is requisite to cut away the wood of the stand, so as to let in the looking-glass; this, however, is only when the water is supposed to be much lower than the surface of the land.

1948. Starch paste models are formed in the usual way of the following composition: Soak gum tragacanth in water, and when soft, mix it with powdered starch till of a proper consistence. It is much improved by adding some double-refined sugar finely powdered. When the model is finished, it must be coloured correctly, and varnished with white varnish, or left plain. This is the composition used by confectioners for modelling the various ornaments on cakes.

1949. Ancient Cities, may be constructed of cork or starch paste, in the same manner as directed above; bearing in mind the necessity for always working models according to a scale, which should be afterwards affixed to the stand of the model.

1950. Modern Cities, are better made of cardboard, starch-paste, or pipe-clay; the houses, public buildings, and other parts being constructed according to scale.

1951. Houses should be cut out of a long, thin strip of cardboard, partially divided by three strokes of a penknife, and glued together; this must afterwards be marked with a pencil, or pen and ink. to represent the windows, doors, stones, etc.; and the roof - cut out of a piece of square cardboard equally and partially divided - is then to be glued on, and the chimney - formed of a piece of lucifer-match, or wood Botched at one end and flat at the other - is to be glued on. A square piece of cardboard must be glued on the top of the chimney; a hole made with a pin in the card and wood; and a piece of grey worsted, thinned at the end, fixed into the hole for smoke.

1952. Cathedrals, Churches and other public buildings are made in the same way; only requiring the addition of small chips of wood, ends of lucifer matches, cork raspings, or small piece of cardboard, for the various ornaments if on a lage scale, but only a pencil mark if small.

1953. When constructed of starch-paste, or pipe-clay, the material is rolled flat on a table or marble slab, and the various sides cut out with a sharp penknife; they are then gummed together, and coloured properly.

1954. If large models of houses or buildings are made, the windows are constructed of talc or thin glass, covered with net or muslin. The frames of the windows are made of cardboard, neatly cut out with a sharp penknife.

1955. Countries should be made of cork, because it is easier to work. Although the starch-paste is very agreeable to model with, yet it is liable to shrink, and therefore when in the mass one part dries quicker than another, so that there is not equal contraction - a great objection to its employment in accurate models. Cork on the contrary, may be easily cut into all forms, and from abounding with pores it is remarkably light - no little consideration to travellers.

1956. Topographical models may, however, be formed of plaster of Paris, but the weight is an objection. We have lately constructed a model of a country on a moderate scale - one eighth of an inch to a square mile - with its mountains, valleys, and towns, and it was done in this manner: - a mode was first made in clay, according to scale and plan; a mould was taken of various parts in gutta percha, rendered soft by dipping it into hot water, and the parts cast in paper cement.