The study of the proportions of stable isotopes of carbon and nitrogen which survive in ancient human and animal bones offers highly suggestive indications of ancient diets. Among the most remarkable results from such investigations is the dramatic change in diet which is thought to have occurred between the Mesolithic and the Neolithic when people turned from maritime to terrestrial food, from fish to meat and vegetables. The three contributions which follow challenge, modify, enhance or reflect on this model. In a pivotal critique of the evidence from Britain and Denmark, Milner et al. present a range of explanations for the signals of a maritime or terrestrial emphasis in diet and conclude that the change need not have been either rapid or total. Lidén et al. show that, in southern Sweden, the preferences for fish over meat were related less to period or culture, but (reasonably enough) to location: fish-eaters live by the sea. Finally Robert Hedges takes up the question of partial marine diets and how to detect them, developing the idea that marine diets might give a fainter signal in people who were only getting small amounts of protein. Perhaps there were many such people in the new order of the Neolithic …

The rock art of Kupgal, south India, represents an archive of images amassed over five millennia. The author works out a first sequence and shows how the Neolithic petroglyph site may have functioned in its landscape – as a ritual locality at which not only images but sound, performance and social relationships were all prominent.

Investigations in the El Multaga area, located in Upper Nubia, brought to light Neolithic burials differing from other known local and contemporary burial sites. The skeletons lay under moundS in a very contracted positions inside pits just large enough to contain them. Grave goods are not regular and rather poor. The authors feel that such practices probably relate to local nomadic groups. The cemetery which had not been picked up by research surveys was discovered in a salvage project.

Toolmakers in Queensland Australia used ingenious knapping techniques to produce an implement with a large bulb of percussion and a gouge-shaped cutting edge: the “gull-wing tula adze”. The author concludes that the tool results from a unique compromise between an inefficient knapping technique and a peculiar – but in this case desirable – phenomenon of fracture mechanics

Standardisation is not simply an indicator of economic factors, such as mass-production or craft specialization but can have roots which may be technical, social or political. Here the fabric, forming technique and dimensions of conical cups in the Bronze Age Aegean are studied by comparing products from the islands of Kea and Melos. While the fabric and forming technique on both islands are standardised and emulate Cretan models, the degree of standardisation of the pottery shapes varies between the two sites. This is explained by their having different social contexts of production.

In the eighteenth to nineteenth century West Africa was the scene of the infamous Atlantic trade in ivory and slaves. The authors' researches show a different situation in the fourteenth to seventeenth centuries, when the people of Ghana were engaged in the indigenous procurement, manufacture and trade in ivory with neighbours across the Sahara

Hawaiian temple sites of the sixteenth to nineteenth centuries have diverse orientations previously thought to be random. Using precise measurements and nineteenth-century native Hawaiian sources, the author shows that the temples cluster into groups whose orientation was deliberate and likely to relate to a particular god.

Depictions on rock in south-east Colorado show mounted warriors with horses clad in leather armour. This was the military strategy adopted by Comanche and Apache peoples between 1650 and 1750 – after the arrival of the horse and before the availability of firearms.

Stable isotopes present in local ground water get into people's teeth before they are 12 years old, and act as a signature to the area where they grew up (and drank the water). In a review of recent work in Britain the authors show the huge potential of this method for detecting population movement – and thus ultimately for investigating questions of migration, exogamy and slavery.

This study compares the results of space syntax analysis of houses in Babylonian Ur with similar analyses on modern households in Baghdad and among the Ashanti. The social organisations identified were then compared with the written evidence for Ur surviving on site in cuneiform tablets. This opportunity to examine spatial, ethnographic and documentary evidence together offers a deep reading of Ur society.

A team of Elders and community officials from the island of Mua in the Torres Straits got together with archaeologists from Australia to study an episode which occurred on the island before the coming of Christianity in 1871. Oral tradition located the burial place of the father of an ancestral islander named Goba, and the investigation of a rock shelter nearby gave a dated sequence of occupation and a fresh sighting of rock paintings, all relating to the period. Each type of evidence gave context to the other, and the project offered a vivid example of how history is fashioned.

Thus the sum of things is ever being renewed, and mortals live dependent one upon another…and in a short space the generations of living creatures are changed and like runners hand on the torch of life.

Part of the enormous importance of the Spirit Cave pottery lies in the early date (7500BP) implied by radiocarbon dates from charcoal associated with some of the sherds. This was challenged by Lampert et al. who directly dated one Spirit Cave sherd from its resin to 3000 BP (Antiquity 77: 126–133). But here Joyce White argues that the stratigraphic context and typology of the dated sherd do not provide a valid basis to support a revision of dating for the earliest sherds. A response from Lampert et al. follows.