MOUND n.
ave preceded the Indians, but later investigations go to show that they were, in general, identical with the tribes that occupied the country when discovered by Europeans. -- Mound maker (Zoöl.), any one of the megapodes. -- Shell mound, a mound of refuse shells, collected by aborigines who subsisted largely on shell…
NEURINE n.
ryta water, and in the putrefraction of proteid matter. It was for a long time considered identical with choline, a crystalline body originally obtained from bile. Chemically, however, choline is oxyethyl-trimethyl-ammonium hydroxide, while neurine is vinyl-trimethyl-ammonium hydroxide. [Written also neurin.]…
OPTICALLY adv.
tically inactive (Chem. Physics), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. -- Optically positive, Optically negative. See under Refraction.…