LEXINGTON, Mass. (AP) _ Kenneth Tompkins Bainbridge, a scientist who accurately measured atomic weights and directed the first atomic bomb test at Alamagordo, N.M., died Sunday. He was 91.

While a postgraduate fellow at Bartol Laboratory in Swarthmore, Pa., Bainbridge built a mass spectrometer to search for the then-undiscovered Element 87, called eka-cesium.

The instrument was so accurate it could measure the weights of atoms and their nuclei, as well as distinguish the weight difference of various isotopes of an element.

Bainbridge and another scientist stumbled on classified work when they devised a pump to separate the fissionable Uranium 235 from its stable isotope, Uranium 238.

In the summer of 1943, Bainbridge was a group leader for the Manhattan Project at Los Almos, N.M. The next year, he was named director of the Trinity project, which exploded the first atomic bomb _ a plutonium bomb _ on July 16, 1945.

Bud Foster

MADISON, Wis. (AP) _ Bud Foster, who coached Wisconsin to its only NCAA basketball championship, died Tuesday at 90.

Foster, who coached Wisconsin teams from 1934 to 1959, also played basketball for the Badgers from 1928 to 1930.

He compiled a 265-267 record in his 25 years as basketball coach, three Big Ten championships, two trips to the NCAA tournament and the 1941 NCAA title.

Foster died of natural causes at a nursing home where he had lived for the last two years.

Ferd Hernandez

OMAHA, Neb. (AP) _ Ferd Hernandez, once the second-ranked middleweight boxer in the world, died Wednesday of liver disease. He was 57.

Hernandez, ranked behind only Nino Benvenuti of Rome in the late 1960s by the World Boxing Association, compiled a 65-12 professional record before an eye injury forced his retirement. He later refereed bouts and worked as a bartender in Las Vegas.