. Elementary zoology. Zoology. BRANCH ARTHROPODS; CLASS INSECT A: THE INSECTS 167 are given off branches, which in turn repeatedly subdivide, until all parts of the body are ramified by tracheae, large and small, bringing air to all the tissues. The oxygen is brain oesophagus- ..ganglia. ^alimentary canal 1 ventral nerve chain Malpighian tubules oviduct'*'egg-tupes2 accessory glandb' tectum \receptaculum~ seminalis Fig. 40.—Dissection of female great water-scavenger beetle, Hydrophilns sp., the heart and tracheae being cut away. taken up from this air, and carbonic-acid gas is given up to it,
. Elementary zoology. Zoology. BRANCH ARTHROPODS; CLASS INSECT A: THE INSECTS 167 are given off branches, which in turn repeatedly subdivide, until all parts of the body are ramified by tracheae, large and small, bringing air to all the tissues. The oxygen is brain oesophagus- ..ganglia. ^alimentary canal 1 ventral nerve chain Malpighian tubules oviduct'*'egg-tupes2 accessory glandb' tectum \receptaculum~ seminalis Fig. 40.—Dissection of female great water-scavenger beetle, Hydrophilns sp., the heart and tracheae being cut away. taken up from this air, and carbonic-acid gas is given up to it, when it passes out of the body again through the spiracles. Thus in the insects oxygen and carbonic-acid. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kellogg, Vernon L. (Vernon Lyman), 1867-1937. New York : H. Holt and company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
