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S. Ramon y Cajal to follow up the investigation by means of an improved application of Golgi's method of staining, and to demonstrate that the axis cylinders, together with all their collateral branches, though sometimes extending to a great distance, yet finally terminate, like the other cell prolongations, in arborescent fibrils having free extremities.
The males give out masses of sperm, and the females discharge ova in such quantity that many of them stick to the fibrils about their mouths. Both kinds of cells pass first into the mantle-cavity after the opening of the gonads, proceed through the gill-clefts into the branchial gut, and are discharged from this through the mouth. The ova are simply round cells.
In the form of slender fibrils these underground branches enter the joints and bed planes of the rock, and there growing they disrupt the materials, giving them a larger surface on which decay may operate. These bits, at first of considerable size, are in turn broken up by the same action.
The lashes of the eyelids are short, but thick and black as the tip of an ermine's tail; the eyelids are brown and strewn with red fibrils, which give them grace and strength, two qualities which are seldom united in a woman. The circle round the eyes shows not the slightest blemish nor the smallest wrinkle. There, again, we find the granite of an Egyptian statue softened by the ages.
You are in principles and thereby in singulars; but we are in principiates and composites; you are in particulars, but we are in generals; and as generals cannot enter into particulars, so neither can natural things, which are material, enter into spiritual things which are substantial, any more than a ship's cable can enter into, or be drawn though, the eye of a fine needle; or than a nerve can enter or be let into one of the fibres of which it is composed, or a fibre into one of the fibrils of which it is composed: this also is known in the world: therefore herein the learned are agreed, that there is no such thing as an influx of what is natural into what is spiritual, but of what is spiritual into what is natural.
The delicate nerve fibrils which end in the fibers communicate with the brain, the center of the will power. Hence, when the brain commands, a nervous impulse, sent along the nerve fibers, becomes the exciting stimulus which acts upon the muscles and makes them shorter, harder, and more rigid. Muscles, however, will respond to other than this usual stimulus.
Mirah said that she had slept well that night; and when she came down in Mab's black dress, her dark hair curling in fresh fibrils as it gradually dried from its plenteous bath, she looked like one who was beginning to take comfort after the long sorrow and watching which had paled her cheek and made blue semicircles under her eyes.
Further physical activity is useful in exercising the voluntary muscles, and thus opposing the invasion by interstitial fat of the muscle fibrils. Extreme exercise also, to a certain degree, exerts a favorable influence on the cardiac muscle, augmenting both its nutrition and its capacity for labor.
The cells of both layers have at their bases long muscular fibrils, those of the ectodermal cells running longitudinally, those of the entoderm transversely. The animal can thus contract its body in both directions, or, if the body contain water and the transverse muscles are contracted, the pressure of the water lengthens the body and tends to extend the tentacles.
The extent of the roots corresponds in a general way to that of the branches, and, as the absorbing parts are the young rootlets, the rain that drops from the leafy roof falls just where it is needed by the delicate fibrils in the earth below. Comparison of a Carrot, an Onion, and a Potato.
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