Physicist who proved the existence of the Fermi surface and was the first President of Clare Hall, Cambridge Brian Pippard was a distinguished physicist and university teacher, a talented classical pianist, a historian of science and an able administrator.

In our obituary of David Shoenberg, page 25, March 26, we said that in 1972 John Bardeen, the inventor of the transistor, became the first person to win a second Nobel prize. We should have said he was the first man to win two Nobel prizes for physics.