. 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. Gardening; Horticulture; Horticulture; Horticulture. 1135. the surface of the eye : legs shown The arrangement of tlj> organs in Insects is soim culiar. The alimentary . , ; canal in larvae is a nearly srnu-iu tube, occupying the central portion of the body; in adult Insects it is usually much longer than the bndv and
. 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. Gardening; Horticulture; Horticulture; Horticulture. 1135. the surface of the eye : legs shown The arrangement of tlj> organs in Insects is soim culiar. The alimentary . , ; canal in larvae is a nearly srnu-iu tube, occupying the central portion of the body; in adult Insects it is usually much longer than the bndv and is more or h-ss fâ],]ot]; fi-nin the mouth the foml nn-^rv tlnMUL'li a pharynx, an |.!i ilj u ~, ,,,Mir- times a crop and ^i _â ! .n-l .i -i^.m iiJ:. Thr' [nur stages ach, and a small :mh1 ''' iinr-- tine. The nervous system of an Insect is similar to that in the higher animals, but it extends along the venter instead of the back. There is a little brain in the upper part of the head, and two nerve cords extend from this around the food canal to another ganglion or nerve center in the lower part of the wo nerve cords then extend longitudinally along INSECTS the venter and connect a series of nerve centers or ganglia, typically one for each segment of the body. From each of these ganglia or little brains nerves arise, which supply the adjacent organs and ramify through- out the body. In Insects, all parts of the body cavity that are not occupied by the internal organs are filled with a rich, colorless or slightly greenish blood. There is no system of tubes, like our arteries and veins, in which the blood is confined and through which it flows There is a so-called "heart" above the food-canal, along the middle line of the back; it is a tube consisting of several chambers communicating with each other and with the body cavity by valvular openings. The blood is forced through this heart into the head, where it es- capes into the body cavity. It then flows to a
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Keywords: ., bookcentury1900, bookdecade1900, booksubjec, booksubjectgardening
