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ring, piece of jewelry

(Encyclopedia)ring, small ornamental hoop usually worn on finger or thumb, but it may be attached to the ear or the nose. Finger rings made of bronze, gold, and silver from the period c.2600–1500 b.c. have been f...

bull, papal letter

(Encyclopedia)bull [Lat. bulla=leaden seal], papal letter. As the diplomatic organization of the papal chancery progressed in the Middle Ages, the papal bull came to be more solemn than the papal brief or encyclica...

Spemann, Hans

(Encyclopedia)Spemann, Hans häns shpāˈmän [key], 1869–1941, German embryologist. He was professor of zoology (1919–35) at the Univ. of Freiburg. By transplanting embryonic tissue to a new location or to ano...

Whitman, Charles Otis

(Encyclopedia)Whitman, Charles Otis, 1842–1910, American zoologist, b. Woodstock, Maine, grad. Bowdoin, 1868, Ph.D. Univ. of Leipzig, 1878. From 1892 he was professor of zoology at the Univ. of Chicago. He founde...

Lyman, Theodore

(Encyclopedia)Lyman, Theodore, 1833–97, American naturalist, b. Waltham, Mass., grad. Harvard, 1855, and Lawrence Scientific School, Harvard, 1858. He was in the Union army as an aide (1863–65) on the staff of ...

Morgan, Conwy Lloyd

(Encyclopedia)Morgan, Conwy Lloyd, 1852–1936, English psychologist. Professor of zoology at University College, Bristol (1887–1909), he served as first vice chancellor of the Univ. of Bristol (1909–10) and wa...

Sperry, Roger Wolcott

(Encyclopedia)Sperry, Roger Wolcott, 1913–94, American biologist, b. Hartford, Conn., Ph.D. Univ. of Chicago, 1941. He studied zoology before teaching biology at the Univ. of Chicago (1946–52) and the Californi...

spikenard

(Encyclopedia)spikenard spīkˈnärd [key], name for several plants. The biblical spikenard, or nard, was a costly aromatic ointment, preserved in alabaster boxes, whose chief ingredient is believed to have been de...

Bütschli, Otto

(Encyclopedia)Bütschli, Otto ôˈtō büchˈlē [key], 1848–1920, German zoologist. He was professor of zoology at the Univ. of Heidelberg. His researches on invertebrate animals advanced knowledge of the develo...

Mayr, Ernst

(Encyclopedia)Mayr, Ernst ĕrnst mīr [key], 1904–2005, American zoologist and author, b. Kempten, Germany. He began his career in Berlin and emigrated to the United States in 1931, where, until 1953, he was asso...