Opening some time after six o'clock in the morning, the white water lily spreads its many-petalled, deliciously fragrant, golden-centered chalice to welcome the late-flying bees and flower flies, the chief pollinators. Beetles, "skippers," and many other creatures on wings alight too. "I have named two species of bees (Halictus nelumbonis and Prosopis nelumbonis) on account of their close economic relation to these flowers," says Professor Robertson, who has captured over two hundred and fifty species of bees near his home in Carlinville, Illinois, and described nearly a third of them as new. Linnaeus, no doubt the first to conceive the pretty idea of making a floral clock, drew up a list of blossoms whose times of opening and closing marked the hours on its face; but even Linnaeus failed to understand that the flight of insects is the mainspring on which flowers depend to set the mechanism going. In spite of its whiteness and fragrance, the water lily requires no help from night-flying insects in getting its pollen transferred; therefore, when the bees and flies rest from their labors at sundown, it may close the blinds of its shop, business being ended for the day. "When doctors disagree, who shall decide?" It is contended by one group of scientists that the water lily, which shows the plainest metamorphosis of some sort, has developed its stamens from petals - just the reverse of Nature's method, other botanists claim. A perfect flower, we know, may consist of only a stamen and a pistil, the essential organs, all other parts being desirable, but of only secondary importance. Gardeners, taking advantage of a wild flower's natural tendency to develop petals from stamens and to become "double," are able to produce the magnificent roses and chrysanthemums of today; and so it would seem that the water lily, which may be either self-fertilized or cross-fertilized by pollen-carriers in its present state of development, is looking to a more ideal condition by increasing its attractiveness to insects as it increases the number of its petals, and by economizing pollen in transforming some of the superfluous stamens into petals. Scientific speculation, incited by the very fumes of the student lamp, may weary us in winter, but just as surely is it dispelled by the fragrance of the lilies in June. Then, floating about in a birch canoe among the lily-pads, while one envies the very moose and deer that may feed on fare so dainty and spend their lives amid scenes of such exquisite beauty, one lets thought also float as idly as the little clouds high overhead. LAUREL or SMALL MAGNOLIA; SWEET or WHITE BAY; SWAMP LAUREL or SASSAFRAS; BEAVER-TREE [SWEETBAY MAGNOLIA] (Magnolia Virginiana; M. glauca of Gray) Magnolia family