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Within each kidney are cone-shaped masses, called pyramids, each with its base
toward the convex side of the kidney, and with the apex (papilla) protruding into
the cavity, or pelvis, at the concave side of the kidney. A layer of tissue between ...
These include such psychic energizers or antidepressants as the class of
chemical compounds called amphetamines (in slang sometimes called “speed”
or “uppers” or “bennies”), which, used without careful medical supervision,
represent a ...
Lines having either of these directions are called isotropic; they have the
paradoxical properties that every isotropic line is perpendicular to itself and that
the distance between any two points joined by an isotropic line is zero. The
points at ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review