CASE STUDIES IN BIOMETRY:  Chapter 21. 

Drug Interactions Between Morphine and Marijuana

Chris Gennings, W. Hans Carter Jr., Billy R. Martin.

The file ch21a.dat contains the spontaneous activity and rectal
temperature data (416 observations of 6 variables). 
There are no missing values.

Variable List:

OBS:            Observation identification number.

MORPHINE:       Dose of morphine sulfate (mg/kg) injected into study mice. The 
		range is 0 to 8.0.

DEL9_THC:       Dose of Delta9-THC (mg/kg) injected into study mice.  The 
		range is from 0 to 15.0.

REP:            Identification of study replication.  The entire 5x7 factorial 
		design was replicated.

SPON_ACT:       Spontaneous Activity as defined by the number of interruptions 
		of a photocell beam in a clear plastic cage over a 10 minute 
		period of time.

TEMP_B:         Rectal Temperature at baseline (just prior to treatment).

TEMP_60:        Rectal Temperature at 60 minutes post treatment injection.