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single tax

(Encyclopedia) single tax, any levy that serves as the government's only source of revenue. Generally, however, it is understood to mean a tax derived from economic rent and used as the sole source…

packaging

(Encyclopedia) packaging, containment and packing prior to sale with the primary purpose of facilitating the purchase and use of a product. Before 1800 packaging was restricted almost entirely to…

nephritis

(Encyclopedia) nephritisnephritisnəfrīˈtəs [key], inflammation of the kidney. The earliest finding is within the renal capillaries (glomeruli); interstitial edema is typically followed by…

nerve gas

(Encyclopedia) nerve gas, any of several poison gases intended for military use, e.g., tabun, sarin, soman, and VX. Nerve gases were first developed by Germany during World War II but were not used…

Netter, Frank Henry

(Encyclopedia) Netter, Frank Henry, 1906–1991, American physician and medical illustrator, b. Brooklyn, N.Y. He attended City College as well as the National Academy of Design and Art Students League…

fracture

(Encyclopedia) fracture, breaking of a bone. A simple fracture is one in which there is no contact of the broken bone with the outer air, i.e., the overlying tissues are intact. In a comminuted…

Grossman, Vasily Semenovich

(Encyclopedia) Grossman, Vasily Semenovich, 1905–64, Russian novelist and journalist, b. Berdichev (now Berdychiv, Ukraine). He graduated (1929) from Moscow State Univ., published novels and short…

Anaxagoras

(Encyclopedia) AnaxagorasAnaxagorasănˌəksăgˈərəs [key], c.500–428 b.c., Greek philosopher of Clazomenae. He is credited with having transferred the seat of philosophy to Athens. He was closely…

antiseptic

(Encyclopedia) antiseptic, agent that kills or inhibits the growth of microorganisms on the external surfaces of the body. Antiseptics should generally be distinguished from drugs such as antibiotics…

jelly and jam

(Encyclopedia) jelly and jam, gelatinous, sweet food prepared by preserving fresh fruits. Since most fresh fruits contain about 80% water and from 10% to 15% sugar, they are subject to fermentation.…