Description

The data arises from a chemical analysis of 26 samples of pottery found at Romano-British kiln sites in Wales, Gwent and the New Forest. The variables describe the composition, in terms of various metals, and are expressed as percentages of the oxides of the metals.

The metals are aluminium, iron, magnesium, calcium and sodium and the sites are

L: Llanederyn,   C: Caldicot  I: Island Thorns  A: Ashley Rails