and by the Librarians and Staffs of the University and the Public Libraries at Southampton. Finally, we wish to thank Mrs H. G. Jerrard and Miss A. J. Tutte for

and by the Librarians and Staffs ofthe University and the Public Libraries at Southampton. Finally, we wish to thank Mrs H. G. Jerrard and Miss A. J. Tutte for

This comprehensive and authoritative dictionary provides clear definitions of units, prefixes, and styles of weights and measures within the Système Internatio

units have been included. References, which now number approximately 650, have been brought up to date. The most recently accepted values of the physical consta

More than two thousand entries, in subjects from astronomy to zoology, are accompanied by tables and charts, as well as biographies of eighty-five scientists.