Blind tests in microscopic residue analysis: comments on Wadley et al. (2004)

In this comment, we critique a recent paper by Wadley, Lombard and Williamson entitled ‘The first residue analysis blind tests: results and lessons learnt’ (Journal of Archaeological Science 31 (2004) 1491–1501) as a means of assessing the role and utility of such blind tests. We find that apart from not being the first residue analysis blind tests, the tests conducted by Wadley et al. exhibit problems at each stage of experimental design. Most of the issues identified can be attributed to loss of experimental control, including lack of documentation of residues prior to blind testing and contamination of their samples. We suggest possible means of avoiding these issues in future microscopic residue analysis blind tests.     

Ancient-DNA reveals an Asian type of Mycobacterium leprae in medieval Scandinavia

Leprosy is a chronic infection of the skin and peripheral nerves caused by the pathogen Mycobacterium leprae. Its impact on human populations and societies of the past as well as its phylogeographic patterns around the world – at least in modern times – has been well documented. This slow growing bacterium has been shown to exist in distinct ‘SNP types’ that occur in relatively defined parts of the globe. The routes that the disease followed in the past are, however, still uncertain. This study of ancient-DNA typing of archaeological human remains from Sweden dated to early Medieval times provides genetic evidence that a transmission of M. leprae ‘SNP subtype’ 2G – found mainly in Asia – took or had already taken place at that time from the Middle East to Scandinavia. This finding is unique in the history of leprosy in Europe. All human specimens from this continent – both modern and ancient – that have been tested to date showed that the one responsible for the infection strains of M. leprae belong to ‘SNP type’ 3, whereas our results show that there were some European populations that were hosts to bacteria representing ‘SNP type’ 2 of the species as well.     

Correlating archaeological and palaeoenvironmental records using a Bayesian approach: a case study from Sutton Common,South Yorkshire,England

This paper presents a case study aimed at correlating archaeological ‘events’ (obtained from radiocarbon measurements and dendrochronology) from the site of Sutton Common with a radiocarbon-dated pollen sequence obtained from a palaeochannel deposit adjacent to the area of the main archaeological activity. It demonstrates the use of a Bayesian approach to quantifying whether the timing of palynological ‘events’ interpreted as reflecting anthropogenic impacts are likely to be associated with archaeological ‘events’. The results suggest that Bronze Age activity in the form of a mortuary enclosure and associated cremation burials are probably not contemporary with the palynological evidence for disturbance to the oak–hazel woodland in this period. Subsequent evidence for local woodland clearance and agriculture is estimated to precede the construction of the large Iron Age enclosure in 372 BC, with increases in ‘anthropogenic indicators’ following this ‘event’. The construction of the site does not appear to have had a pronounced impact on the local vegetation, with hazel the only woody taxon to show clear reductions. Despite the use of a substantial number of oak timbers in the enclosure palisade, percentages of oak remain remarkably stable. Later farming activity on the site probably post-dates the end of activity in the enclosures. The value of the methodology is discussed in relation to quantifiable and robust correlations of archaeological and palaeoenvironmental narratives of landscape and human activity.     

Starch grains analysis of stone knives from Changning site,Qinghai Province,Northwest China

Plant residues recovered from prehistoric stone artifacts can be used to help explain tool function and plant use. At the Changning site in Qinghai Province, Northwest China, dating from 4000 yr BP, we examined starch granules extracted from three slate stone knives. A total of 153 starch grains were retrieved from three stone knives, from which we identified starches from legumes, the Triticeae tribe, foxtail millet (Setaria italica), broomcorn millet (Panicum miliaceum), roots and tubers. These results indicate that the stone knives may have been used for a variety of activities that included reaping grasses and food processing. The species of starch grains retrieved from the study sample reveal that diverse crops were cultivated at the Changning site 4000 years ago.     

Scaling ceramic provenience at Lydian Sardis,Western Turkey

We present a multistage strategy to define the scale and geographic distribution of ‘local’ ceramic production at Lydian Sardis based on geochemical analysis (NAA) of a large diverse ceramic sample (n = 281). Within the sphere of local ceramic production, our results demonstrate an unusual pattern of reliance on a single resource relative to other contemporary Iron Age centers. When our NAA results are combined with legacy NAA provenience data for production centers in Western Anatolia, we can differentiate ceramic emulation from exchange, establish probable proveniences for the non-local component of the dataset, and define new non-local groups with as yet no known provenience.     

War and peace? An agenda for peace research and practice in geography

In 1885, Kropotkin called for geography to be ‘a means of dissipating [hostile] prejudices’ between nations that make conflicts more likely, and ‘creating other feelings more worthy of humanity’. As a body of scholars, we have risen far more ably to the negative task of ‘dissipating’ than to the positive charge of ‘creating’: Geography is better at researching war than peace. To redress that imbalance, we need both to conceptualise more clearly what we mean by peace, and make a commitment to researching and practising it. These arguments are made with reference to the broader literature and research along the Danish/German, Israeli/Palestinian and Kyrgyz/Uzbek interfaces.     

Conventions of climate change: constructions of danger and the dispossession of the atmosphere

Climate change has emerged as one of the key issues of the early years of the twenty-first century, bringing together concerns about human relations to nature, the responsibility of rich nations to poorer, the links from local activities to global conditions, and the obligations of present to future generations. This paper focuses on three key ‘narratives’ that are enshrined in international climate policy – asserting that ‘dangerous climate change’ is to be avoided; that the responsibility for climate change is common but differentiated; and that the market (in the form of carbon trading) is the best way to reduce the danger. The goal of the paper is to analyse the origins of these narratives, the power relations they reflect and promote, and some of the concepts and images used to support them, including those of climate determinism, climate stabilisation, ‘burning embers’, ‘tipping points’, Global Warming Potentials, targets and timetables, and carbon credits. I argue that by choosing the market solution of trading carbon we have created a new and surreal commodity, unfairly allocated pollution rights to nation states based on 1990 emission levels, and established a new set north–south relations and carbon transactions in the name of sustainable development.     

Application of lipid biomarker analysis to evaluate the function of ‘slab-lined pits’ in Arctic Norway

Gas chromatography–mass spectrometry (GC–MS) and bulk carbon isotope determinations have been performed on samples (‘cemented organic residues’, charcoal, sediment and fire-cracked rock) excavated from 12 slab-lined pits from various locations in Arctic Norway to test the premise that these archaeological features were used for the extraction of oil from the blubber of marine mammals, such as seal, whale and walrus. A wide range of lipid compound classes were detected especially in the cemented organic residues and in the charcoal samples. The presence of long-chain unsaturated and isoprenoid fatty acids together with oxidation and thermal alteration products of unsaturated acids such as dicarboxylic acids, dihydroxyfatty acids and ω-(o-alkylphenyl)alkanoic acids suggests that these features were used for marine oil extraction at elevated temperatures. Notably the location of the hydroxyl groups in the dihydroxyfatty acids provides a record of the positional isomer of the precursor fatty acid and allows confirmation that 11-docosenoic (cetoleic) acid, the most abundant C_22:1 isomer in marine oil, was a major component of the original lipid. Further information was provided by the presence of long-chain fatty acyl moieties in surviving triacylglycerols and the presence of cholesterol. A fungal metabolite, mycose (trehalose), was found in all samples apart from a fire-cracked rock and points to microbiological activity in the pits. Bulk isotope analysis conducted on the ‘cemented organic residues’ is consistent with modern reference samples of blubber and oil from seal and whale. These data provide clear analytical evidence of the function of slab-lined pits in the archaeological record and suggest widespread exploitation of marine mammals for producing oil for heating, lighting and myriad other uses in the past.     

The development of the longbow in late medieval England and ‘technological determinism’

Traditional understandings of the development of the medieval English longbow and its role in the fourteenth-century ‘infantry revolution’ have recently been challenged by historians. This article responds to the revisionists, arguing based on archaeological, iconographic and textual evidence that the proper longbow was a weapon of extraordinary power, and was qualitatively different from – and more effective than – the shorter self-bows that were the norm in England (and western Europe generally) before the fourteenth century. It is further argued that acknowledging the importance of the weapon as a necessary element of any credible explanation of English military successes in the era of the Hundred Years War does not constitute ‘technological determinism’.     

Trapeze shaped flint tips as proxy data for occupation during the Late Mesolithic and the Early to Middle Neolithic in the northern part of the Netherlands

In the northern part of the Netherlands (defined here as the area situated above the river Rhine), the Late Mesolithic is dated to the period between ca. 8100 and 6000 BP, and is characterised by the occurrence of trapeze shaped flint tips. Trapezes continue to be in use during the Swifterbant culture (ca. 6000–4800 BP), including the ceramic Mesolithic phase (Early Swifterbant) which is dated between 6000 and 5600 BP. During the Funnelbeaker culture or TRB (ca. 4800–4100 BP) transverse points dominate. With the onset of the Single Grave Culture (SGC) transverse points are no longer the ‘preferred weapon of choice’; they are replaced by surface-retouched (tanged) points. In this paper some of the basic premises of the typological development of trapezes (narrow to broad) and the chronological relevance of ‘subtypes’ (symmetric, asymmetric, right-angled and rhombic) are discussed based on analyses of trapezes from four excavated Mesolithic and Swifterbant sites. For comparison a random sample of TRB transverse points was included in several analyses as well. One of the main conclusions of this paper is that it is possible, based on analyses of metric and non-metric traits of trapeze shaped flint tips, to distinguish between true ‘Mesolithic’ trapezes, trapezes belonging to the (Neolithic) Swifterbant culture, and transverse points of the TRB. The outcomes of these analyses may help in obtaining a relative date for undated (surface) assemblages, and may furthermore lead to the positive identification of Swifterbant settlements in the higher (situated above the present-day sea level) Pleistocene areas in the northern and eastern part of the study area which are so far unknown. The results presented here will be put to the test in a forthcoming paper.     

Technology based evolution? A biometric test of the effects of handsize versus tool form on efficiency in an experimental cutting task

The use of stone cutting tools opened a novel adaptive niche for hominins. Hence, it has been hypothesised that biomechanical adaptations evolved to maximise efficiency when using such tools. Here, we test experimentally whether biometric variation influences the efficiency of simple cutting tools (n = 60 participants). Grip strength and handsize were measured in each participant. 30 participants used flint flakes, while the other 30 used small (unhafted) steel blades. Variations in basic parameters of tool form (length, width, thickness, cutting edge length) were recorded for the 30 flint flakes. It was ensured that mean handsize and strength in each participant group were not significantly different to investigate the effect of tool variation. The experimental task required cutting through a 10 mm-diameter hessian rope. Cutting efficiency was measured using both ‘Number of cutting strokes required’ and ‘Total time taken’. Results show that both efficiency measures were significantly correlated with handsize using all 60 participants. However, no significant differences were found between the flake and blade groups in terms of mean efficiency. Nor was any significant relationship found between tool form parameters and efficiency in the flint flake group. We stress that our results do not imply that tool form has no impact on tool efficiency, but rather that – all other things being equal – biometric variation has a statistically significant influence on efficiency variation when using simple cutting tools. These results demonstrate that biomechanical parameters related directly to efficiency of use, may plausibly have been subject to selection in the earliest stone tool-using hominins.     

Networks and Neolithisation: sourcing obsidian from Körtik Tepe (SE Anatolia)

This paper details the use of obsidian sourcing to reconstruct networks of interaction (or ‘communities of practice’) amongst populations of south-eastern Anatolia and the Near East in the context of ‘Neolithisation’ during the late 11th–early 10th millennia BC. EDXRF was used to elementally characterise 120 artefacts of Epi-Palaeolithic – Pre-Pottery Neolithic A date from Körtik Tepe in south-eastern Anatolia. Four eastern Anatolian sources are represented, mainly Bingöl A/B and Nemrut Da?, plus the first evidence for the use of Mu? obsidian. When the source data is integrated with the artefacts' techno-typological attributes it is possible to locate the assemblage within an Upper Tigris tradition (with some interesting local differences), which stands in stark contrast to contemporary practices in northern Mesopotamia and the Levant. These local and regional distinctions support recent views of the Neolithic being much more heterogeneous, with a ‘mosaic’ of community-specific/local traditions of subsistence practices, raw material choices and lithic technologies during the Younger Dryas–Early Holocene.     

Teotihuacan pottery as evidence for subsistence practices involving maguey sap

As in most other pre-industrial cities, urban life at Teotihuacan was closely intertwined with ceramic technology, perhaps nowhere more so than in the realm of foodways. Here, we use two kinds of information derived from ancient pottery—ceramic residues and intra-site sherd distribution patterns—to shed new light on the city’s subsistence economy. We concentrate in particular on the amphora, a type of vessel that may have been used to contain aguamiel and pulque, liquid foodstuffs made of maguey sap. Distributional data distilled from surface collections of the Teotihuacan Mapping Project are informative about patterned variation in the use of these pots at the scale of the entire city. More focused analyses are aimed at chemical characterization of organic residues preserved in ceramic sherds recovered from recent excavations. Part of a broader project aimed at identifying both animal and plant remains, the results of the residue analysis provide the first direct identification of pulque remains in Teotihuacan pottery.     

Detecting modes in low-dimensional archaeological data

An approach to testing for modes in low-dimensional data, Silverman’s test, novel in an archaeological setting, is described and illustrated. ‘Patterns’ in archaeological data can be suggested by the presence of modes. Reassurance is needed that modes suggested by graphical analysis are genuine before attempting substantive archaeological interpretation. The test either provides such reassurance, or else guards against over-interpretation, particularly with small samples. Data on loomweight dimensions, lead isotope ratios, and ceramic compositions are used to illustrate use of the test, dealing with issues concerning outliers and small samples as they arise. The focus is on univariate mode detection.     

Identifying biomolecular origins of solid organic residues preserved in Iron Age Pottery using DTMS and MVA

The chemical characterisation of solid organic residues found in ceramic vessels, can provide archaeologists with valuable information about ancient diets. Although several selective analytical techniques have been applied to the analysis of specific classes of compounds, such as extractable lipids, waxes, terpenoids and protein fragments, a non-selective analytical technique is required to characterise and categorise complete solid organic residues. In this study, Direct Temperature-resolved Mass Spectrometry (DTMS) is used for the characterisation of 34 solid residues situated on vessels recovered from an indigenous settlement from the Roman period at Uitgeest – Groot Dorregeest (The Netherlands). Sample preparation is limited to grinding very small samples (5–10 μg) and suspending them in water. DTMS analysis of aliquots (1–2 μL) of this suspension gave information about a broad range of organic compounds, such as lipids, polynuclear aromatic hydrocarbons, markers for residual proteins and polysaccharides, and for newly formed complex condensed polymers. Multivariate analysis of the DTMS spectra identified five different chemotypes: groups of residues with comparable chemical characteristics. The biomolecular origin of each of these chemotypes is identified by comparison with experimentally charred reference materials. The chemotypes A₁ and A₂ consist of charred residues identified as starch-rich foods (mixed with animal or plant products), chemotype C consists of protein-rich charred animal products without starch, chemotype B contains smoke condensates from wood fires, and chemotype D consists of special protein-rich and lipid-free foods or non-food products.     

Interrogating post-democratization: Reclaiming egalitarian political spaces

There is now an emerging body of thought on the dynamics of de-politicization, the ‘disappearance of the political’, the erosion of democracy and of the public sphere, and the contested emergence of a post-political or post-democratic socio-spatial configuration. I situate and explore this alleged ‘post-democratization’ in light of recent post-Althusserian political thought. I proceed in four steps. First, I discuss the contested configurations of this post-politicization and the processes of post-democratization. In a second part, I propose a series of theoretical and political arguments that help frame the evacuation of the properly political from the spaces of post-democratic policy negotiation. This diagnostic is related to a particular interpretation of the distinction between ‘the political’ and ‘polic(e)y/‘politics’. In a third part, I argue how emancipatory–democratic politics can be reclaimed around notions of equality, and freedom. In the concluding part, perspectives for re-vitalising the political possibilities of a spatialized emancipatory project are presented. The crux of the argument unfolds the tension between politics, which is always specific, particular, and ‘local’ on the one hand and the universal procedure of the democratic political that operates under the signifiers of equality and freedom on the other.     

Modern humans in Sarawak,Malaysian Borneo,during Oxygen Isotope Stage 3: palaeoenvironmental evidence from the Great Cave of Niah

During recent reinvestigations in the Great Cave of Niah in Borneo, the ‘Hell Trench’ sedimentary sequence seen by earlier excavators was re-exposed. Early excavations here yielded the earliest anatomically-modern human remains in island Southeast Asia. Calibrated radiocarbon dates, pollen, algal microfossils, palynofacies, granulometry and geochemistry of the ‘Hell Trench’ sequence provide information about environmental and vegetational changes, elements of geomorphic history and information about human activity. The ‘Hell’ sediments were laid down episodically in an ephemeral stream or pool. The pollen suggests cyclically changing vegetation with forest habitats alternating with more open environments; indicating that phases with both temperatures and precipitation reduced compared with the present. These events can be correlated with global climate change sequences to produce a provisional dating framework. During some forest phases, high counts of Justicia, a plant which today colonises recently burnt forest areas, point to fire in the landscape. This may be evidence for biomass burning by humans, presumably to maintain forest-edge habitats. There is evidence from palynofacies for fire on the cave floor in the ‘Hell’ area. Since the area sampled is beyond the limit of plant growth, this is evidence for human activity. The first such evidence is during an episode with significant grassland indicators, suggesting that people may have reached the site during a climatic phase characterised by relatively open habitats ∼50 ka. Thereafter, people were able to maintain a relatively consistent presence at Niah. The human use of the ‘Hell’ area seems to have intensified through time, probably because changes in the local hydrological regime made the area dryer and more suitable for human use.     

The contents of unusual cone-shaped vessels (cornets) from the Chalcolithic of the southern Levant

Cornets are cone-shaped ceramic vessels, characteristic of the Chalcolithic period (ca. 4700–3700 BC) in Israel and Jordan. Their contents and use are unknown. Gas chromatography with flame ionization and mass-selective detection, showed that extracts of cornets from five different sites with different related activities (domestic, habitation cave and a cultic complex) all contain the same assemblage of mainly n-alkanes adsorbed within their walls. This assemblage differs from those found in other types of ceramic vessels from the same sites, as well as from the residues found within the associated sediments. The assemblage of odd and even-numbered n-alkanes found in the cornets is almost identical to that found in the residues of beeswax heated on modern ceramic fragments, as well as in a beehive from the Iron Age IIA strata at Tel Rehov, Israel. Thus the cornets are most likely to have contained beeswax. The presence of beeswax in the cornets contributes to our understanding of the Chalcolithic period; a time when secondary products such as milk, olive oil and wine are thought to have come into use.     

Beyond ‘the toad beneath the harrow’: geographies of ecological science, 1959–1965

This paper traces the distinctive shifts in ecology and conservation in Britain during the late 1950s and 1960s. These were the last six years of the Nature Conservancy, the state research council responsible for ecological research, the conservation of nature, and for providing expert advice. Drawing on work in science studies and the geography of science, the paper addresses the changing spatialities of official ecological knowledge and the ordering of nature in this period of British modernity. The paper examines the Conservancy's construction of the form and relationship of research to practice: the connections between local spaces of research – the laboratory and the nature reserve – to the ‘right’ government of land and management of resources more universally. This putative ‘single great mission’ is traced through examination of the politics and practices of doing ecological research at the time, including the creation of a new Experimental Station, the growth of ecology as public discourse, and, importantly, government reviews of science. The paper concludes by considering how this mission was tempered and reconfigured by institutional change.     

Obsidian provenance for prehistoric complexes in the Amur River basin (Russian Far East)

The sources of high quality volcanic glass (obsidian) for archaeological complexes in the Amur River basin of the Russian Far East have been established, based on geochemical analyses by neutron activation and X-ray fluorescence of both ‘geological’ (primary sources) and ‘archaeological’ (artifacts from the Neolithic and Early Iron Age cultural complexes) specimens. A major obsidian source identified as the Obluchie Plateau, located in the middle course of the Amur River, was found to be responsible for supplying the entire middle and lower parts of the Amur River basin during prehistory. The source has been carefully studied and sampled for the first time. Minor use of three other sources was established for the lower part of the Amur River basin. Obsidian from the Basaltic Plateau source, located in the neighboring Primorye (Maritime) Province, was found at two sites of the Initial Neolithic (dated to ca. 11,000–12,500 BP). At two other sites from the same time period, obsidian from a still unknown source called “Samarga” was established. At the Suchu Island site of the Early Neolithic (dated to ca. 7200–8600 BP), obsidian from the ‘remote’ source of Shirataki (Shirataki-A sub-source) on Hokkaido Island (Japan) was identified. The range of obsidian transport in the Amur River basin was from 50 to 750 km within the basin, and from 550 to 850 km in relation to the ‘remote’ sources at the Basaltic Plateau and Shirataki-A located outside the Amur River valley. The long-distance transport/exchange of obsidian in the Amur River basin in prehistory has now been securely established.