The Penguin Desk Encyclopedia of Science and Mathematics

  • Bryan Bunch &
  • Jenny Tesar
Viking Penguin, $40

The Oxford Companion to the Earth

Edited by:
  • Paul L. Hancock
Oxford University Press, £39.50

A Dictionary of the History of Science

  • Anton Sebastian
Parthenon, £38, $65

Encyclopedia of Genetics

Edited by:
  • Eric C. R. Reeve
Fitzroy Dearborn, £105