The development of feudal society, of centralizing kingship and ultimately of a system of common law, brought about great changes which all hinge on the fundamental fact that the kings, while increasing the power of the state in other respects, surrendered it completely as regards the relations between the peasants and their lords.
Mytilidae.-Shell inequilateral, anterior end short; hinge without teeth; ligament external.
Parallelodontidae.-Shell as in Arca, but the posterior hinge teeth elongated and parallel to the cardinal border.
Vulsellidae.-Shell high; hinge toothless; foot without byssus.
That when a wing or rod hinged at one end is made to move in a circle, the tip or free end of the wing or rod describes a much wider circle in a given time than a portion of the wing or rod nearer the hinge (fig.
Dimyarian, with orbicular and almost equilateral shell; adherent; hinge without teeth Sand ligament internal.
Canif is also of Teutonic origin), a small cutting instrument, with the blade either fixed to the handle or fastened with a hinge so as to clasp into the handle (see Cutlery).
In the trap-door species of Lycosidae, like, for instance, Lycosa opifex of the Russian steppes, the hinge is weak and the lid of the burrow is kept normally shut by being very much thicker and heavier at its free margin opposite the hinge so that it readily falls by its own weight.
The hinge was oiled and didn't squeak because the friction had been reduced.
Referring to the figures (2, 3) for an explanation of terms applicable to the parts of the valve and the markings on its inner surface corresponding to the muscular areas already noted on the surface of the animal's body - we must specially note here the position of that denticulated thickening of the dorsal margin of the valve which is called the hinge (fig.