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The other set is composed of circular fibers, which go round in the iris from the border to the pupil, and constitute the orbicular muscle, the contraction of which diminishes the size of the pupil.
Optic Nerve and Retina. In the acute form the retina and optic nerve present the same condition that is present in the vascular tunic; namely, that of venous stasis with the consequent edema. Frequently minute hemorrhages occur in the retina, particularly in violent acute attacks. Cupping of the discs slowly develops, causing more or less stretching of the nerve fibers over the edge of the cup.
Is not this evident also in every living creature, even the smallest? In that there are in it organs of sense, also brains, a heart, lungs, and other parts; with arteries, veins, fibers, muscles, and the activities proceeding therefrom; besides the surpassing marvels of animal nature, about which whole volumes have been written.
It does not extend quite to the front limits of the posterior chamber, but stops short in a scalloped border, a little behind the ciliary processes. This is the nerve coat of the eye, and forms the terminal organ of vision. It is really an expansion of the ultimate fibers of the optic nerve, by means of which impressions are sent to the brain.
Because a certain configuration of the cells and fibers making up a nervous system is inherited as well as the characters of the constituent elements themselves, a worm or an insect is enabled to act as it does. A butterfly does not have to learn how to fly, for it flies instinctively.
This adjustment of the glottal lips "presumably occurs by nervously aroused contractions of the fibers of the muscles in the glottal lips." Continuing, Prof. Scripture says: "Physiologically stated, the action for a vowel is as follows: Each glottal lip consists mainly of a mass of muscles supported at the ends and along the lateral side. It bears no resemblance to a membrane or a string.
The souls of these two beings were no more married than their bodies; they had never had the intimate communion which keeps feeling alive; they had shared neither pains nor pleasures, those strong links which tear us by a thousand edges when broken, because they touch on all our fibers, and are fastened to the inmost recesses of our hearts.
But the case with regard to textiles made from vegetables fibers is quite different; upon materials made from cotton, flax, jute, or other fiber of the vegetable kingdom, the new aniline colors cannot be fixed without the assistance of other bodies acting the part of mordants.
Standing before them, the stranger was given a cord, so bedecked with flowers, as to disguise its stout fibers; and taking: the bride's hands, he bound them together to a ritual chant; about her neck, in festoons, disposing the flowery ends of the cord.
It will be plain, then, that if the nails are driven with the grain of the horn, they will drive much easier, and hold better, and be less liable to cut and crack the fibers. Another benefit can be derived from this process of nailing. When the foot comes to the ground, the nails act as a brace to keep the foot from slipping forward off the shoe.
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