It does not require any knowledge of color, considered as a subject of inquiry to appreciate the beauty of Bowers, and yet we are willing to credit the fact that our gardeners are ready to welcome more information than is current on this interesting topic. Professor Church's little book on color, recently published, is not only the latest, but a sound, brief and practical treatise, and it does not cost much, although fairly well supplied with chromatic illustrations. In reference to the coloring of flowers and foliage, Professor Church writes :

"If we take a small piece of violet gelatine (used for crackers, bonbons, etc.), mount it on a black card and look at a flower-garden through it, a series of effects of the following sort will be observed : Mature green foliage seen in shadow assumes a slaty-gray color ; young leaves appear of a decided gray-pink; the yellow patches on the foliage of the golden euonymus and aucuba are light red ; the yellow tulip and the blossoms of the common gorse become a brilliant and more intense crimson-scarlet; dark brown wall flowers have a crimson hue; a bed of white and yellow tulips contain nothing but pale lilac and bright scarlet flowers; blue, violet and purple flowers are altered in hue to a much slighter extent. Without doubt, the extraordinary increase of diversity of torus and hues in the foliage of trees, which is brought about by the interposition of this violet film; corresponds to real differences which commonly escape observation. Particularly is this the case with the regular reflections of sky and cloud hues from the glossy surfaces of leaves and the peculiar colors of their immature foliage." [Italics ours.] We should be glad to quote other passages of similar interest to gardeners, but content ourselves with this morsel from the interesting and valuable little volume.