Table 4.

ED50 values (mg/kg or g/kg [ethanol]).

Pigeon	Component
	2-s	4-s	8-s
	Chlordiazepoxide
R13	17.2	16.3	13.8
R15	12.6	13.7	14.6
R16	10.7	9.7	9.2
R26	14.4	12.6	10.3
R30	9.40	7.5	10.1
R31*	7.0	7.0	7.1
Average	12.9	12.0	11.6
	Clonidine
R13	0.014	0.025	0.035
R15	0.027	0.032	0.049
R16	0.028	0.026	0.030
R26	0.015	0.017	0.018
R28	0.008	0.007	0.005
R31	0.018	0.023	0.042
Average	0.018	0.022	0.030
	Cocaine
R13	3.51	2.57	4.70
R15	1.73	2.43	7.62
R16	1.28	8.03	2.35
R26	3.00	3.13	3.29
R28	2.11	1.69	5.26
R31	5.92	6.38	3.41
Average	2.93	4.04	4.44
	Haloperidol
R13	0.28	0.59	0.24
R15	1.00	1.17	2.20
R16	1.62	0.89	0.31
R26	0.20	0.89	0.63
R28	0.08	0.09	0.08
R30	0.67	0.67	0.57
Average	0.64	0.72	0.67
	Morphine
R13	1.03	1.62	2.45
R15	5.20	5.58	7.20
R16	1.34	2.00	1.95
R26	5.90	6.18	6.75
R30	1.87	3.29	1.63
R31	2.39	9.50	6.70
Average	2.96	4.70	4.45
	Ethanol
R13	2.57	2.32	2.27
R14	2.12	1.92	2.07
R15	1.39	1.65	1.87
R16	1.30	2.02	2.06
R17	1.27	1.20	1.18
Average	1.73	1.53	1.89

^*Indicates ED75; value not included in group mean.