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Mesdag, Hendrik Willem

(Encyclopedia)Mesdag, Hendrik Willem hĕnˈdrĭk vĭlˈəm mĕsˈdäkh [key], 1831–1915, Dutch marine painter. He gave up banking at 35 to study painting. He later lived at The Hague and was known as a painter an...

Salamanca, University of

(Encyclopedia)Salamanca, University of, at Salamanca, Spain; founded 1218 by Alfonso IX of León, reorganized 1254 by Alfonso X of Castile and León. It has faculties of philosophy, philology, geography and history...

Tonegawa, Susumu

(Encyclopedia)Tonegawa, Susumu, 1939–, Japanese molecular biologist, Ph.D. Univ. of California at San Diego, 1969. A member of the Basel Institute for Immunology in Switzerland (1971–81), he became a professor ...

Wistar, Isaac Jones

(Encyclopedia)Wistar, Isaac Jones, 1827–1905, American financier, b. Philadelphia; great-nephew of Caspar Wistar. His early manhood was spent adventurously in the West as a muleteer, trapper, and gold miner. In t...

United States Naval Academy

(Encyclopedia)United States Naval Academy, at Annapolis, Md.; for training young men and women to be officers of the U.S. navy or marine corps. George Bancroft, Secretary of the Navy, founded and opened (1845) it a...

Carlson, Evans Fordyce

(Encyclopedia)Carlson, Evans Fordyce, 1896–1947, U.S. marine officer, b. Delaware co., N.Y. Enlisting at 16 in the army, he served in the Philippines and Hawaii and in France during World War I. In the U.S. marin...

snail

(Encyclopedia)snail, name commonly used for a gastropod mollusk with a shell. Included in the thousands of species are terrestrial, freshwater, and marine forms. Some eat both plant and animal matter; others eat on...

Plesiosaurus

(Encyclopedia)Plesiosaurus plēˌsēəsôrˈəs [key], genus of extinct predatory marine reptiles that arose in the Triassic period of geologic time and continued into the Jurassic and Cretaceous periods. Plesiosau...

Dam, Henrik

(Encyclopedia)Dam, Henrik hănˈrēk däm [key], 1895–1976, Danish biochemist. He identified vitamin K in 1934 and later investigated the role of vitamin E in nutrition. The 1943 Nobel Prize in Physiology or Medi...

cytology

(Encyclopedia)cytology sītŏlˈəjē [key], in biology, the study of the structure of all normal and abnormal components of cells and the changes, movements, and transformations of such components. The discipline ...