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Updated: May 5, 2025
Buckland, as having been an independent centre of the dispersion of erratics great glaciers, long since extinct, having radiated from the Snowdonian heights in Carnarvonshire, through seven principal valleys towards as many points of the compass, carrying with them large stony fragments, and grooving the subjacent rocks in as many directions. Besides this evidence of land-glaciers, Mr.
Cover the vessel with a thick cloth, and set it in a place of moderate warmth, leaving it at rest for twenty four hours. At the end of this time the milk will become sour, and a thick substance will be gathered on its surface. Now with a churn-staff, beat it till the thick substance just mentioned, be intimately blended with the subjacent fluid.
In acute arthritis, all the structures of the joint are involved; the articular cartilage is invaded by granulation tissue derived from the synovial membrane, and from the marrow of the subjacent bone; it presents a worm-eaten or ulcerated appearance, or it may undergo necrosis and separate, exposing the subjacent bone and leading to disintegration of the osseous trabeculæ caries.
Again, the cells may be arranged in only a single layer, or they may be several layers deep. In the former case the epithelium is said to be simple; in the latter, stratified. No blood-vessels pass into these tissues; the cells derive their nourishment by the imbibition of the plasma of the blood exuded into the subjacent tissue. Nerve Cells from the Gray Matter of the Cerebellum.
A second generation is produced, and the inhabitants become pressed for space. The new-born pierce numerous passages and penetrate towards the interior of the pile as far as the next summer layer. There they spread themselves, always boring; they construct new rooms like the first, and arrange pillars here and there. Their descendants gain the subjacent zone, and so the process goes on.
Wounds or defects in articular cartilage are repaired by fibrous or osseous tissue derived from the subjacent cancellous spaces. Transplantation of Bone Bone-grafting.
The basaltic strata, as well as those of the subjacent basal series, dip, with a moderate inclination, where they have not been subsequently disturbed, towards the sea.
These restless marauders, as has already been observed, are apt to be continually on the prowl about the skirts of the mountains; and even when encamped in some deep and secluded glen, they keep scouts upon the cliffs and promontories, who, unseen themselves, can discern every living thing that moves over the subjacent plains and valleys.
They were, indeed, in some concern of mind, scanning every fold of the subjacent forest, and betraying both anger and dismay in their impatient gestures. "I do not see him, Kuno," said the first huntsman, "nowhere not a trace, not a hair of the mare's tail! No, sir, he's off; broke cover and got away. Why, for twopence I would hunt him with the dogs!"
If a portion of the periosteum be detached by injury or disease, there is risk that a layer of the subjacent bone will lose its vitality and be cast off. Microscopic Structure of Bone. If a very thin slice of bone be cut from the compact tissue and examined under a microscope, numerous minute openings are seen.
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