Pantologia. a New (Cabinet) Cyclopaedia, by J.M. Good, O. Gregory, and N. Bosworth Assisted by Other Gentlemen of Eminence

Pantologia. a New (Cabinet) Cyclopaedia, by J.M. Good, O. Gregory, and N. Bosworth Assisted by Other Gentlemen of Eminence

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1813 edition. Excerpt: ...These have four membranaceous transparent naked wings, generally reticulated. 5. Hymenoptera, as wasps, bees, &c. have four membranaceous wings, and a tail furnished with a sting. 6. JJiptera, as the common house-fly, have only two wings. 7." Aptcra, as the lobster, crab, scorpion, spider, &c. have no wings. See Zoology. The structure of the eye in many insects is a most curious piece of mechanism. The outer part is remarkably hard, to guard against injuries, and has commonly a reticular appearance, or the whole may he looked upon as an assemblage of smaller eyes: but whether they see objects multiplied before them has not yet been determined. Linneus, and several others following him, deny the existence of a brain in these creatures. But it is certain, that at least a number of the larger kinds, as the lobster, crab, &c. have a soft substance similar to the brain, from which the optic and other nerves take their rise; besides, when tliis substance is irritated, the animal is thrown into convulsions: hence we may conclude, that insects have a brain as well as the other classes, although this is smaller in proportion to their bodies. The ear has been lately discovered to be placed at tho root of their antennas or feelers, and can be distinctly seen in some of the larger kinds, as the lobster. They have a stomach, and other organs of digestion; ami it is curious, that in some, as the lobster, the teeth are found to be situated in the stomach. They have a heart and blood-vessels, and circulation is carried on in them, somewhat as in the higher classes; but the blood is without red globules, or, as naturalists speak, is colourless. In the lobster, and others of the larger kind, when a piece of shell is broken, the pulsation of the...
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Product details

  • Paperback | 644 pages
  • 189 x 246 x 33mm | 1,134g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236583612
  • 9781236583611