Georgvon Bekesy, 83, Hungarian-born American physicist who won the Nobel Prize for physiology or medicine for discoveries on stimulation within the cochlea of the ear, 13 June 1972.

Vannevar Bush, 84, electrical engineer who invented the differential analyzer, 28 June 1974.

William David Coolidge, 101, physical chemist who invented ductile tungsten, which was essential in the development of the modern incandescent lamp bulb and the X-ray tube, 3 February 1975.

Theodosius Dobzhansky, 75, Russian-American geneticist who contributed to the synthetic theory of evolution, 18 December 1975.

Vincent Du Vigneaud, 77, biochemist who won the Nobel Prize for research on pituitary hormones, 11 December 1978.

John Ray Dunning, 67, physicist whose experiments in nuclear fission helped lay the groundwork for development of the atomic bomb, 25 August 1975.

William Maurice Ewing, 67, geophysicist who established bases of plate tectonics and made early photographs and seismic studies of the ocean floor, 4 May 1974.

Kurt Godel, 71, Austrian-American mathematician who showed that the logic of any sufficiently complex logical...