1.   Their numerical system, derived from the Babylonians, was based on multiples of the number six.

2.   The files are organized according to a numerical system.

3.   As with Performance Now and Review Writer, you select employee characteristics and apply a numerical system to establish strengths and weaknesses.

4.   Gersh of Maxons uses a numerical rating system for jobs.

5.   Some prominent critics, like Hugh Johnson and Clive Coates, in England, condemn all numerical systems.

6.   But experts cautioned a numerical system for hurricanes might not work for winter storms.

7.   Large portions of the messages remain undeciphered because of the sheer difficulty of cracking the complex numerical systems the Soviets used to encode them.

8.   The Yanomami do not have a precise numerical system above the number three, and their religious practices prohibit them from saying the names of the dead.

9.   Web site addresses correspond to a numerical system allowing them to automatically route visitors and electronic mail to the appropriate servers.