Table 2.

Overview of the experiments in which cats were exposed to different parts of the silver vine plant

Exposure	Silver vine material	Response
		Negative	Positive
1	Normal fruit	9	0
	Galled fruit	1	8
2	Normal fruit	8	0
	Normal fruit (powder)	8	0
3 & 4	Control	8	0
	Woodchips	7	1
	Dried leaves	8	0
	Fresh leaves	8	0
5 & 6	Woodchips a	0	1
	Galled fruit	0	1

^a The sock with the woodchips was offered first; the sock with the fruit galls was added after the cat lost interest in the sock with the woodchips. During all other exposures socks containing the silver vine plant material were offered simultaneously to the cats