Presents arguments against the recent "punctuated equilibrium" point of view expressed by evolutionists Stephen Jay Gould and Niles Eldredge. Reviews evidence for continuous and gradual change, as recently cited by four anthropologists in the July 9 issue of "Nature." (CS)

Described are the idea of chaos and the ability to control the chaotic behavior of a real-world physical system. Included is an explanation of the methodology and applications in biology and chemistry. (KR)