File:Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United (20832402081).jpg

Title: Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom
Identifier: cyclopediaofamer03bail (find matches)
Year: 1906 (1900s)
Authors: Bailey, L. H. (Liberty Hyde), 1858-1954, ed; Miller, Wilhelm, 1869- joint ed
Subjects: Gardening -- Dictionaries; Plants -- North America encyclopedias
Publisher: New York, Doubleday, Page & Company
Contributing Library: UMass Amherst Libraries
Digitizing Sponsor: UMass Amherst Libraries

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1139. Larva of moth. 1133. Nymphs of the four-lined leaf-bug a.id adult of the tarnished plant-bug. The sm^llHst one is the iiympli recently hatched. The ne.\t is the nymph after the first moult. Tlie imago is shown at the right. Hair lines at the right of nymphs, and small figure near imago indicate the natural size. in many adult Insects. Caterpillars and other larv^ pos- sess only simple eyes. It is thought that each facet of the compound eye sees apart of an object: thus the whole eye would form a mosaic picture on the Insect's brain. The simple eyes doubtless see as our eyes do, and seem to be best adapted for use in dark places and for near vision. Insects do not see the form of objects distinctly, but their eyes are doubtless superior to ours in distin- guishing the smallest movements of an ob- iM^ftSb ject. It is now supposed ^- —'i// X/^^^^i that no Insect.T can dis- tinctly see objects at a greater dislaiirr than 6 feet. It iiMi-t he a si.Kth s.'iixc, :i -,iise of direction, which en- ables the bee to find its way for a mile or more back to its home. In- sects are doubtless able to distinguish the color of objects, and some Insects seem to prefer certain colors. Blue is said to be the favorite color of the honey-bee, and violet that of ants; ants are also apparently sensitive to the ultra- violet rays of light, which man cannot perceive. It is generally supposed that the shape and high colors of flowers attract Insects: but recent ex- periments seem to show that Insects guided to flowers by the sense of smell rather than by sight. The hard outer skin of an Insect has no nerves distributed in it, hence \t is not sensitive; but it is pierced w ith holes, in which grow hairs that ire in connection with nerves at their It is by means of these sensory hairs that Insects feel, and are sensi- tive to touch on most parts of the body. Doubtless Insects are not deaf, for we know that many of them make sounds, and it must nat- urally follow that they ears to hear, for there is every reason to suppose that they make these sounds as love- songs to attract the sexes, as a means of communication, or possi- bly to express their emo- tions. Some think that 1141 A maggot 1140. Tent-caterpillar L trvi of a dipteious insect

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