. 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. What They Insect is an animal wliioli, in the adult stage, has its body divided into three distinct * regions : the head, the thorax and the abdomen (Fig. lia+). The head bears one pair of anten- nse, and there are always three pairs of legs and usually either one or two pairs of wings attached t ) the
. 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. What They Insect is an animal wliioli, in the adult stage, has its body divided into three distinct * regions : the head, the thorax and the abdomen (Fig. lia+). The head bears one pair of anten- nse, and there are always three pairs of legs and usually either one or two pairs of wings attached t ) the thorax. By these characteristics one can usually readily distin- guish an adult Insect from any other animal. Among the near relatives of Insects in the animal world are the cray-flsh, sow-bugs and crabs, but these are mostly aquatic animals, breathing by true gills; they have two pairs of antennse, and at least five pairs of legs. Centipedes, or "hundred-legged worms,"and millipedes, or "thousand-legged worms," are also nearly related to Insects, but they have the thorax and abdomen forming a continuous region,witli from (!to200 segments, each bear- ing oiii- Ml I,,,, |,,ii,'^ r,r 1, ^.-: iliiv have one pair of anten- the ders. In; .- ;imong the Insects, but they f"r III .1 ; I I iiM I . Ill ^ ^ .:t I iM \ liave the head and thorax grown tugi-ilici, 111, auii-iiiui-. uud have four pairs of legs. How They Are Constructed.âInsects are constructed on an entirely different plan from the higher animals. Their supporting skeleton is outsidi-, it being simply the skin hardened more or less li\ n ui>~i;iiirf, known as chitin. This firm outir : â ! '. i. .i, mi|. ports and protects the muscles, i i , r\i -, and other organs within. Tlir u,^ mr and eyes of an Insect are attachul L" ii:> li,_cui, aial all are exceedingly useful organs, as will be shown later in discussing the feeling and the other sensations of an Insect. An Insect's wings and
Size: 1310px × 1906px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthor, bookcentury1900, bookdecade1900, booksubjectgardening
