Eschewing diagrams except in one case, Miss Selsam and Mr. Wexler enlarge upon the fascination of a winged fruit taking root, of a plant emerging from the seed and itself budding, of a terminal bud opening into flower, by enlarging remarkable close-ups, some in color, of each stage of the cycle. This is a companion to Milkweed (1967), more useful because the maple tree is more representative. A remarkably clear and non-technical explanation/demonstration of cross-pollination follows the foregoing, a brief identification of kinds other than the, Norway maple and an equally brief indication of uses conclude. Then: ""Maple trees are beautiful too,"" opposite a color photo of fall foliage at its height. Thoughtful and effective, likely to outlast its many competitors.