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Rulers of Spain since 1474 (table)

(Encyclopedia)Rulers of Spain since 1474(including dates of reign) Union of Castile and Aragón Hapsburg Dynasty Bourbon Dynasty French Intrusion Bourbon Restoration Elective Monarchy First Republic ...

leptospirosis

(Encyclopedia)leptospirosis lĕpˌtəspīrōˈsĭs [key], febrile disease caused by bacteria of the genus Leptospirae. The disease may affect dogs, cattle, pigs, sheep, goats, and horses and is also transmissible t...

Permian period

(Encyclopedia)Permian period pûrˈmēən [key] [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale, tablegeologic timescale, table) from 250 to 290 million years ago. Many ma...

browntail moth

(Encyclopedia)browntail moth, common name for a moth, Nygmia phaeorrhoea, of the tussock moth family. It is a serious pest of forest and shade trees, especially oak. It was introduced from Europe about the same tim...

barrel organ

(Encyclopedia)barrel organ, mechanical musical instrument requiring nothing but the regular rotary motion of a handle to keep it going. It probably originated at the beginning of the 18th cent., and was once used e...

yellow fever

(Encyclopedia)yellow fever, acute infectious disease endemic in tropical Africa and many areas of South and Central America. Yellow fever is caused by a virus transmitted by the bite of the female Aedes aegypti mos...

toothfish

(Encyclopedia)toothfish, common name for a genus (Dissostichus) of deep-water marine ray-finned fishes found in waters off S South America to Antarctica. The Patagonian toothfish, D. eleginoides, is the northerly o...

Hofmann, August Wilhelm von

(Encyclopedia)Hofmann, August Wilhelm von ouˈgo͝ost vĭlˈhĕlm fən hôfˈmän [key], 1818–92, German organic chemist. He was professor at the Univ. of Berlin from 1865 and was a founder (1868) of the German C...

restaurant

(Encyclopedia)restaurant, a commerical establishment where meals can be bought and eaten. In the 16th cent. English inns and taverns began to serve one meal a day at a fixed time and price, at a common table, and u...

Formulas for Various Areas (table)

(Encyclopedia)Formulas for Various Areas 1 The abbreviations used are: b = base (length of any side of a plane figure); a = altitude (perpendicular distance from the farthest point of the figure to t...