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Updated: May 2, 2025
Let the reader fancy himself standing at the mouth of a large bay of some sixteen or eighteen miles in diameter, in nearly every direction; though the shores must be indented with advancing promontories and receding curvatures, while the depth of the whole might possibly a little exceed the greatest width.
The first of these curvatures is called kyphosis, in which the curvature is posterior; second, lordosis, in which the curvature is anterior; third, scoliosis, in which it is lateral, to the right or left. Kyphosis is the most common of the deviations in man and is most often found in the dorsal region, although it may be in the lumbar region.
"We carried with us a small scaling-ladder and up this I went. The bosses were apparently nothing more than chiseled curvatures in the stone. I laid my hand on the one I was examining, and drew it back sharply. In my palm, at the base of my thumb, I had felt the same shock that I had in touching the slab below. I put my hand back. The impression came from a spot not more than an inch wide.
Foot records a case of amyelia, or absence of the spinal cord, in a fetus with hernia cerebri and complete fissure of the spinal column. Nicoll and Arnold describe an anencephalous fetus with absence of spinal marrow; and Smith also records the birth of an amyelitic fetus. In some persons there are exaggerated curvatures of the spine.
Along some parts of the inner side, a little way beneath the summit, a flat ledge extends, which imitates in outline the smaller curvatures of the crest. Grey feldspathic lava. A layer, one inch in thickness, of a reddish earthy matter. In some parts, the ridge is surmounted by a wall or parapet, perpendicular on both sides. Near Diana's Peak this wall is extremely narrow.
§ I. No subject has been more open ground of dispute among architects than the decoration of the wall veil, because no decoration appeared naturally to grow out of its construction; nor could any curvatures be given to its surface large enough to produce much impression on the eye.
The majesty of a roof is never, I think, so great, as when the eye can pass undisturbed over the course of all its curvatures, and trace the dying of the shadows along its smooth and sweeping vaults.
Machine-shops, engine-houses, and such apparatus, differ but slightly upon different roads; but the form and dimensions of the locomotive engines should depend upon the nature of the traffic, and upon the physical character of the road, and that most intimately, so much, indeed, that the adjustment of the grades and curvatures must determine the power, form, and whole construction of the engine.
§ XXI. We need not, however, hope to be able to imitate, in general work, any of the subtly combined curvatures of nature's highest designing: on the contrary, their extreme refinement renders them unfit for coarse service or material.
Feeling his way cautiously he moved downward with the current, which was not so strong as he had imagined from the noise of the running water. Beneath the first arch he made his way, following the winding curvatures of the right-hand wall. After a few yards of progress his hand came suddenly in contact with a slimy thing clinging to the wall a thing that hissed and scuttled out of reach.
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