Cremated remains, usually interred in urns, most commonly occur in cemeteries dating from the latter part of the Bronze Age, the closing phase of the Pre-Roman Iron Age and the Pagan Saxon period. Although such remains are fragmentary, they are now recognized as providing a basis, after appropriate treatment and anatomical study, for assessing the numbers of individuals cremated, together with their age and sex (Gejvall, 1947). Sometimes, additional information can be gleaned about endemic pathological conditions (Lisowski, 1955).
The physical characteristics of the cremated remains vary from site to site, depending, as discussed by Gejvall (1963), on such factors as the method used in cremation, the firing temperature, and the extent of any subsequent pulverisation—natural or artificial. But despite the fact that there is always a large proportion of unidentifiable fragments, there are invariably certain parts, often of appreciable size, which can be recognized. It is from these fragments, when separated, that information about the number of individuals present, together with their sex and age can be obtained.