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The Sciences (Cranium itself has three)

The cranium itself has three compartments, the two frontal bones and the ethmoid, the parietal and the spheroid, and three the occipital. The tongue is attached to the hyoid, and suspended by ligaments. Their lungs are two, composed of cells, and lodged, without adhering, in the cavity of the ribs; and diaphragm, which is lined by the pleura. Motion, or force, is effected by muscles attached by ligatures to the bones, and acting or reacting by pairs, like two animals in the envelope of one skin, and joined by the spine or vertebra. Mammal (or Mammalia, plural) from mamma, signifying a breast or udder, denotes those animals which suckle their young. Quadruped excludes man and the cetaceous tribes, and comprehends the lizards, tortoises, and other reptiles not Mammalia. Mammals compose a class, or primary division of the animal kingdom.