Dataset: marih_beam.dat Source: B.B. Robinson and J.R. Matchett (1940). "Maihuana Investigations III: The Effect of Region of Growth of Hemp on Response to the Acid and Alkaline Beam Tests," Journal of The American Pharmaceutical Association, Vol.29,Issue 10, pp.448-453 Description:Results of alkaine and Acid Beam Tests on Marijuana plants of 4 varieties (1=Manchurian "A",2=Manchurian "B",3=African "C", 4=Kentucky "D") in 4 states (1=Virginia,2=Wisconsin,3=Nebraska,4=Mississippi) at 3 time points. Plants were grown at 4 blocks within each state. Response = Total numerical response of 5 separate plant tests for each plot (block) of a variety for a location (state) for a given time period. Variables/Columns Variety 8 Time Period 16 State 24 Block 31-32 Alkaline Beam Test Response 39-40 Acid Beam Test Response 47-48