Bone histology was studied in thin sections, polishedsections, and high-resolution digital photographs offracture surfaces.The fracture surfaces were locatedaround mid-shaft of the bones to capture a cross sectionof the neutral growth region of the shaft.This containsthe longest record of an individual’s growth.The thinsections and polished sections can be ground either fromsamples cut off a fracture surface or from a core sample.We obtained core samples by drilling with a diamonddrill bit at a standardized sampling location, also at midshaft(for details see Sander 2000).After embedding inpolyester resin, the sample was cut perpendicular to thelong axis of the bone, revealing a segment of the crosssection of the shaft.One half of the sample was groundinto the thin section, the other half into the polishedsection.