Three prehistoric sites in the Upper Mun River Valley of north-eastern Thailand have provided a detailed chronological succession comprising 12 occupation phases. These represent occupation spanning 2300 years, from initial settlement in the Neolithic (seventeenth century BC) through to the Iron Age, ending in the seventh century AD with the foundation of early states. The precise chronology in place in the Upper Mun River Valley makes it possible to examine changes in social organisation, technology, agriculture and demography against a background of climatic change. In this area the evidence for subsistence has been traditionally drawn from the biological remains recovered from occupation and mortuary contexts. This paper presents the results of carbon isotope analysis to identify and explain changes in subsistence over time and between sites, before comparing the results with two sites of the Sakon Nakhon Basin, located 230km to the north-east, to explore the possibility of regional differences.

Several months after the Coptic text had gone to press I had for the first time the opportunity to examine the papyrus under ultraviolet light. From this final collation resulted a few refinements in the text.

The Manuscript. This extraordinary tale survives in a single Coptic manuscript from the Gnostic Library of Nag‘Ḥammadi. Acquired by the Coptic Museum of Old Cairo in 1956, the manuscript bears the inventory number 10544 and in current nomenclature is designated codex Cairensis gnosticus II (CG II). In earlier scholarship it was codex I (J. Doresse, Vig. Christ. 3 [1949] 133–134), codex III (H.-Ch. Puech, Coptic Studies…Crum [1950]), and codex X (Doresse, Les livres secrets des gnostique d'Egypte, vol. I [1958].

The unsatisfactory quality of the witnesses to the text of the Didache, especially that of Bryennios' codex Hierosolymitanus 54 (a.D. 1056), has been emphasized in a well-known paper by Erik Peterson. This evaluation holds true for Did. 1.3D–2.1, the object of the present study, to an even greater extent than was indicated by Peterson.