NIHILISTIC EFFECT OF 2 POSITIVE CHEMICAL STIMULI

[1] COWARD SJ, 1967, J BIOL PSYCHOL, V9, P32

[2] Hyman L. H., 1951, THE INVERTEBRATES

[3] MEISTER A, 1957, BIOCHEMISTRY AMINO A

[4] THE FOOD OF 4 SPECIES OF LAKE-DWELLING TRICLADS [J]. JOURNAL OF ANIMAL ECOLOGY, 1963, 32 (02) : 175 - 191

[5] WEBB KL, IN PRESS

[1] COWARD SJ, 1967, J BIOL PSYCHOL, V9, P32

[2] Hyman L. H., 1951, THE INVERTEBRATES

[3] MEISTER A, 1957, BIOCHEMISTRY AMINO A

[4] THE FOOD OF 4 SPECIES OF LAKE-DWELLING TRICLADS [J]. JOURNAL OF ANIMAL ECOLOGY, 1963, 32 (02) : 175 - 191

[5] WEBB KL, IN PRESS