"Concavity" Quotes from Famous Books
 ... cultivators of natural history. The wild animals are kept, in their respective cages, out of doors, which is equally salutary for themselves and agreeable to their visitors. I was much struck by the perpetual motion of a huge, restless, black bear, who has left the marks of his footsteps by a concavity in the floor:—as well as by the panting, and apparently painful, inaction of an equally huge white or gray bear—who, nurtured upon beds of Greenland ice, seemed to be dying beneath the oppressive heat of a Parisian atmosphere. The same misery appeared to beset the bears ...
— A Bibliographical, Antiquarian and Picturesque Tour in France and Germany, Volume Two • Thomas Frognall Dibdin
... open and shut the four openings which are in these two concavities; to wit, three at the entry of the vena cava, where they are so disposed, that they can no wayes hinder the bloud which it contains from running into the right concavity of the heart; and yet altogether hinder it from coming out. Three at the entry of the arterious vein; which being disposed quite contrary, permit only the bloud which is in that concavity to pass to the lungs; but not that which is in the lungs ...
— A Discourse of a Method for the Well Guiding of Reason - and the Discovery of Truth in the Sciences • Rene Descartes
... elephant is exceedingly convex; that of the African is exactly the reverse, and the concavity behind the shoulders is succeeded by a peculiarity in the sudden rise of the spine above the hips. The two species are not only distinct in certain peculiarities of form, but they differ in their habits. The Indian elephant dislikes the sun, and invariably retreats to thick shady ...
— The Nile Tributaries of Abyssinia • Samuel W. Baker
... methods of eliminating errors when found; but I must content myself with giving a description of various methods of detecting existing errors in the surfaces that are being worked, whether, for instance, it be an error of concavity, ...
— Scientific American Supplement, No. 484, April 11, 1885 • Various
... influence the choice of a locality is its capability for defense. If the camp be pitched beside a stream, a concave bend, where the water is deep, with a soft alluvial bed inclosed by high and abrupt banks, will be the most defensible, and all the more should the concavity form a peninsula. The advantages of such a position are obvious to a soldier's eye, as that part of the encampment inclosed by the stream is naturally secure, and leaves only one side to be defended. The concavity ...
— The Prairie Traveler - A Hand-book for Overland Expeditions • Randolph Marcy
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