This is " skulls_readme.txt ".

The file " skulls_data " uses data from 
Carnegie-Mellon's DASL site, and comprises
four measurements (MB, BH, BL, NH) for
each of thirty skulls, and for each of
five time epochs; see Section 1.2.  
The five columns are 

1. MB: Maximal Breadth of skull
2. BH: Basibregmatic Height of skull
3. BL: Basialveolar Length of skull
4. NH: Nasal Height of skull
5. Year: approximate year of skull formation
   (negative = B.C., positive = A.D.)

To work with these data in R one may start with

data <- matrix(scan("skull_data", skip=8), byrow=T, ncol=5)
y1 <- data[ ,1]
y2 <- data[ ,2]
y3 <- data[ ,3]
y4 <- data[ ,4]
year <- data[ ,5]

etc.