Although these are perfectly flat, they seldom fade and are very pretty and useful. Have ready a large book or a quantity of old newspapers and several weights. Use the newspapers for leaves and ferns—blotting-paper is best for the flowers. Both the flowers and leaves should be fresh and without moisture. Place them as nearly in their natural positions as possible in the book or papers, and press, allowing several thicknesses of paper between each layer. Remove the specimens to dry papers each day until perfectly dry. Some flowers must be immersed—all but the flower head—in boiling water for a few minutes, before pressing, to prevent them from turning black. Orchids are of this nature. If possible, it is well to obtain all parts of a plant, the roots as well as the seeds, for a more interesting collection can thus be made than from the flower and leaf alone. It is advisable to be provided with a blank book or, what is still better, pieces of stiff white paper of uniform size on which to mount the flowers or leaves when dried; also with a small bottle of mucilage and a brush for fastening them, and some narrow strips of court-plaster or gummed paper for the stems and thicker parts of the plants. The sooner they can be mounted the better. Place them carefully on the paper, writing beneath the locality and date of finding. Flowers and leaves thus prepared make beautiful herbariums. Should you desire =Leaves and Ferns for Decoration,= first press them nicely; then give them a coat of wax, by ironing them on both sides with a hot iron over which a piece of beeswax has first been rubbed. Cover the specimens completely with wax, as this renders them quite pliable, and they are no longer brittle nor easily broken. Sprays of small leaves can be pressed entire. To heighten the effect, use dry colors, rubbing them in, and selecting those corresponding with the color of the leaves when first gathered. The colors must be put on before the coating of wax. Ferns should be gathered when nearly full grown, and, after they are pressed, painted light green with oil-colors; in that case the beeswax is not used. The oil in the paint, like the wax, makes the specimens more substantial, and they look quite fresh and fair. Sometimes the late autumn frosts will bleach the ferns perfectly white; then are they even more delicate than before Nature changed their color. We have seen the =Color of Flowers Changed,= and it is a very pretty experiment, very simple, too. Immerse the flowers in ammonia, and you will be surprised to see white lilies change to a delicate yellow, pink roses turn a lovely light green, while dark-red sweet-peas assume blue and rich purple tints; and the change is so rapid it is almost like magic. Another interesting experiment is making =Natural Wax Flowers=