A data set from Oehlert (2000) \emph{A First Course in Design and
Analysis of Experiments}, New York: W. H. Freeman.

Data originally from Hareland, G.~A. and M.~A. Madson (1989).  ``Barley
dormancy and fatty acid composition of lipids isolated from freshly
harvested and stored kernels.'' {\em Journal of the Institute of Brewing}
{\em 95}, 437--442.

Columns are weeks, water, and response (number of seeds germinating).
Codes 1, 2, ... 5 for weeks are 1, 3, 6, 9, 12 weeks.
Codes 1, 2 for water are 4, 8 mls.