Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 451
in motion or at rest. You can also tell itscolor. Although the insect sees things vaguely,it likewise can accurately and instantlydetect motion and distinguish colors. The dragon-fly has very large com-pound eyes with over twenty-five thou-sand facets. If you have ever tried toget near one or to… … MOURNING HORSE-FLY. GREATLY MAGNIFIED VIEW OF A PART OF THE EYE OF A DYTISCUS. (This was photographed in a microscope. The light used was from alamp. The flame shows faintly repeated in the facets. Examine with areading-glass, and you can see the six-sided divisions between the facets.) tific…
Children's literature
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