(Encyclopedia) Henson, Matthew Alexander, 1866–1965, African-American arctic explorer, b. Charles County, Md. He accompanied Robert E. Peary as personal assistant, dog driver, and interpreter on…
(Encyclopedia) Forsyth, Alexander JohnForsyth, Alexander Johnfôrsīthˈ [key], 1769–1843, Scottish inventor. He invented in 1807 the first workable percussion cap for the ignition of gunpowder in…
(Encyclopedia) Fleming, Sir Alexander, 1881–1955, Scottish bacteriologist, discoverer of penicillin (1928) and lysozyme (1922), an antibacterial substance found in saliva and other body secretions.…
(Encyclopedia) Johnson, Alexander Bryan, 1786–1867, American philosopher and semanticist, b. Gosport, England. He immigrated (1801) to the United States and eventually became a wealthy banker in…
(Encyclopedia) Johnston, Alexander Keith, 1804–71, Scottish cartographer and geographer royal of Scotland. He issued many notable atlases, maps, and gazetteers, including The National Atlas of…
(Encyclopedia) Murray, Alexander Stuart, 1841–1904, Scottish archaeologist. He was assistant keeper (1867–86) and keeper (from 1886) of Greek and Roman antiquities at the British Museum. From 1894 to…
(Encyclopedia) Mudd, Samuel Alexander, 1833–83, Maryland physician and Confederate sympathizer who on April 15, 1865, set the broken left leg of Lincoln's fleeing assassin, John Wilkes Booth. Mudd…
(Encyclopedia) Müller, Karl Alexander, 1927–, Swiss physicist, Ph.D. Swiss Federal Institute of Technology, 1958. In 1983, Müller and co-researcher Johannes Georg Bednorz discovered superconductivity…
(Encyclopedia) Neill, Alexander Sutherland, 1883–1973, English educator. After teaching at state schools in Scotland, Neill became dissatisfied with traditional education. In 1924, he set up the…