poisons
data frame has 48 rows and 3 columns.The data form a 3x4 factorial experiment, the factors being three poisons and four treatments. Each combination of the two factors was used for four animals, the allocation to animals having been completely randomized.
data(poisons)
Box, G.E.P. and Cox, D.R. (1964) An analysis of transformations (with Discussion). Journal of the Royal Statistical Society, B, 26, 211--252.