. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 738 Handbook of Nature-Study drooping stamens or a pistil with long, double stigmas. The flowers are greenish yellow, and those that bear pollen and those that bear the seeds may be borne on separate trees or on the same tree, but they are always in different clusters. If on the same tree, the seed-bearing tassels are at the tips of the twigs, and those bearing pollen are along the sides. The ovary is two-celled, but there is usually only one seed developed in the pair which forms a &
. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 738 Handbook of Nature-Study drooping stamens or a pistil with long, double stigmas. The flowers are greenish yellow, and those that bear pollen and those that bear the seeds may be borne on separate trees or on the same tree, but they are always in different clusters. If on the same tree, the seed-bearing tassels are at the tips of the twigs, and those bearing pollen are along the sides. The ovary is two-celled, but there is usually only one seed developed in the pair which forms a "key;" to observe this, however, we have to dissect the seeds; they have the ap- pearance of two seeds joined together, each pro- vided with a thin, closely veined wing and the two attached to the tree by a single long, drooping stem. This twin-winged form is well fitted to be whirled off by the autumn winds, for the seeds ripen in Sep- tember. I have seen seed- lings growing thickly for rods to the leeward of their parent tree, which stood in an open field. The maples bear blossoms and seeds every year. There are six species of native maples which are readily distinguishable. The sil- ver and the red maples and the box elder are rather large trees; the motmtain and the striped (or goose- foot) maples are scarcely more than shrubs, and mostly grow in woods along streams. The Norway and the sycamore maples have been intro- duced from Europe for ornamental planting. The cut-leaf silver maple comes from Japan. The maple wood is hard, heavy, strong, tough and fine-grained; it is cream-color, the heart-wood showing shades of brown; it takes a fine polish and is used a: a finishing timber for houses and furniture. It is used in con- struction of ships, cars, piano action and tool handles; its fine-grained quality makes it good for wood-carving; it is an excellent fuel and has many other uses. MAPLE-SUGAR MAKING Although we have tapped the trees in America for many hundred ye
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