VISUAL CONTRAST THRESHOLDS OF GOLDFISH (CARASSIUS AURATUS)

[51] WALD G, 1941, J GEN PHYSIOL, V25

[52] WALLS GL, 1942, 19 CRANBR I SCI B

[53] VISUAL-ACUITY [J]. ANNUAL REVIEW OF PSYCHOLOGY, 1965, 16 (01) : 359 - 380

[54] WOODHEAD PMJ, 1966, OCEANOGR MAR BIOL AN, V4

[51] WALD G, 1941, J GEN PHYSIOL, V25

[52] WALLS GL, 1942, 19 CRANBR I SCI B

[53] VISUAL-ACUITY [J]. ANNUAL REVIEW OF PSYCHOLOGY, 1965, 16 (01) : 359 - 380

[54] WOODHEAD PMJ, 1966, OCEANOGR MAR BIOL AN, V4