American Association for the Advancement of Science. . . . . . . . . . . . . . . . .185

ADInstruments. . . . . . . . . . . . . . . . .Cover 3

Bio-Rad Laboratories, Inc.. . . . . . . . . . . . . . . . .Cover 2

Carolina Biological Supply Co.. . . . . . . . . . . . . . . . .Cover 4

Clemson University. . . . . . . . . . . . . . . . .147

Forrest T. Jones & Company. . . . . . . . . . . . . . . . . . 148

Howard Hughes Medical Institute . . . . . . . . . . . . . . . .145

Mississippi State University. . . . . . . . . . . . . . . . .179

NASCO. . . . . . . . . . . . . . . . .208

National Academy of Sciences. . . . . . . . . . . . . . . . .206

Nature Education. . . . . . . . . . . . . . . . .139

PASCO Scientific. . . . . . . . . . . . . . . . .204

Random House . . . . . . . . . . . . . . . . .150––151

Sam Rhine-Genetic Update Conferences. . . . . . . . . . . . . . . . .201

Suspended Animations. . . . . . . . . . . . . . . . .143

Swift Optical Instruments, Inc.. . . . . . . . . . . . . . . . .144

TheDNAStore.com. . . . . . . . . . . . . . . . .188

Vernier Software & Technology. . . . . . . . . . . . . . . . .140

Ward's Natural Science Establishment, Inc.. . . . . . . . . . . . . . . . .207