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Henderson, Donald Ainslie

(Encyclopedia)Henderson, Donald Ainslie, 1928–2016, American physician instrumental in eradicating smallpox, b. Lakewood, Ohio, M.D. Univ. of Rochester, 1954, M.P.H. Johns Hopkins, 1960. He joined (1955) the Epid...

Rogers, Lindsay

(Encyclopedia)Rogers, Lindsay, 1891–1970, American political scientist, b. Baltimore, grad. Johns Hopkins (B.A., 1912; Ph.D., 1915). He was (1914–15) a fellow in political science at Johns Hopkins before becomi...

quartz

(Encyclopedia)quartz, one of the commonest of all rock-forming minerals and one of the most important constituents of the earth's crust. Chemically, it is silicon dioxide, SiO2. It occurs in crystals of the hexagon...

Hartline, Haldan Keffer

(Encyclopedia)Hartline, Haldan Keffer, 1903–83, American physiologist, b. Bloomsburg, Pa., M.D. Johns Hopkins, 1927. From 1931 to 1949 (except for 1940–41), he was a researcher at the Eldridge Reeves Johnson Fo...

Adler, Cyrus

(Encyclopedia)Adler, Cyrus ădˈlər [key], 1863–1940, American Jewish educator, grad. Univ. of Pennsylvania, 1883, Ph.D. Johns Hopkins, 1887. He taught Semitic languages at Johns Hopkins from 1884 to 1893. He wa...

Joplin

(Encyclopedia)Joplin jŏpˈlĭn [key], city (1990 pop. 40,961), Jasper and Newton counties, SW Mo., at the edge of the Ozarks; settled c.1839, inc. 1873. It is a railroad center, the shipping and processing point o...

Frank, Tenney

(Encyclopedia)Frank, Tenney, 1876–1939, American historian, b. Clay Center, Kans. After 1919 he was a professor at Johns Hopkins Among his best-known works are A History of Rome (1923), Economic History of Rome (...

Mather, Frank Jewett, Jr.

(Encyclopedia)Mather, Frank Jewett, Jr., 1868–1953, American art critic and teacher, b. Deep River, Conn., grad. Williams, 1889, Ph.D. Johns Hopkins, 1892. He taught (1893–1900) at Williams and was professor (1...

Giacconi, Riccardo

(Encyclopedia)Giacconi, Riccardo, 1931–2018, Italian-American astrophysicist, b. Milan, Italy, Ph.D. Univ. of Milan 1954. He was a researcher at American Science and Engineering Corporation (1959–73), professor...

Conklin, Edwin Grant

(Encyclopedia)Conklin, Edwin Grant, 1863–1952, American zoologist, b. Waldo, Ohio, B.S. Ohio Wesleyan Univ., 1886, Ph.D. Johns Hopkins, 1891. From 1908 he taught and conducted research at Princeton, principally i...