Andean Ores,Bronze Artifacts,and Lead Isotopes: Constraints on Metal Sources in Their Geological Context

With a focus on bronze production in the south-central Andes during the Middle Horizon, this study reports the first archaeological use of lead isotope analysis to investigate metallic ores and metal artifacts in the Andean zone of South America. Because the vast majority of metal deposits in the Andean cordillera formed in a convergent plate boundary setting, lead isotope compositions of most Andean ore sources are not unique. Lead isotope ratios of central and south-central Andean ores define four geographically distinct ore lead isotope provinces, oriented and elongated parallel or sub-parallel to the trend of the Andean cordilleras. Consequently, ore lead isotope ratios vary strongly from west to east along transects through the coast, highlands, and altiplano, but they exhibit much less variation from north to south. The strong west-to-east variation in ore lead isotope signatures allows discrimination between ore bodies, and ultimately between metal artifacts, as a function of macro-ecozone location: coast, junga-qiswa, puna, and altiplano. We present the most up-to-date database of ore lead isotope signatures for the south-central Andes including those determined for ores we sampled over an approximate 250,000-km² region within Bolivia, northern Chile, and northwest Argentina. Lead isotope signatures of Cu-As-Ni bronze artifacts from Tiwanaku (altiplano capital) and San Pedro de Atacama (desert oasis entrepôt) establish that altiplano and high sierra ore bodies provided the metal for both assemblages. Conchopata (Wari) arsenic bronze artifacts exhibit lead isotope ratios compatible with the Julcani (Huancavelica) copper sulfarsenide deposit.     

Ancient Maya wood selection and forest exploitation: a view from the Paynes Creek salt works,Belize

Ancient building construction wood preserved in a peat bog below the seafloor in a shallow mangrove lagoon in Paynes Creek National Park, Belize, provides an exceptional record of Classic Maya wood use. Identifications of construction wood at Early Classic Chan B'i, and Late Classic Atz'aam Na, are reported and discussed to assess forest exploitation and species selection over time. Black mangrove (Avicennia germinans) dominates the Early Classic assemblage. The Late Classic assemblage is characterized by greater variability and an absence of mangrove species. When considered in the environmental context, identified species conform to principles of optimal foraging. The change in the wood assemblage over time suggests overexploitation of forest resources, resulting in deforestation of the local landscape and subsequent adaptation of foraging behavior. Deforestation is linked to the wider social context in which growing inland populations created demand for salt, putting greater pressure on the forest resources exploited by the Paynes Creek salt works for fuel and timber.     

"An object of vulgar curiosity": legitimizing medical hypnosis in Imperial Germany

During the late nineteenth and early twentieth centuries, German medical hypnotists sought to gain a therapeutic and epistemological monopoly over hypnosis. In order to do this, however, these physicians were required to engage in a complex multi-dimensional form of boundary-work, which was intended on the one hand to convince the medical community of the legitimacy and efficacy of hypnosis and on the other to demarcate their use of suggestion from that of stage hypnotists, magnetic healers, and occultists. While the epistemological, professional, and legal boundaries that medical hypnotists erected helped both exclude lay practitioners from this field and sanitize the medical use of hypnosis, the esoteric interests, and sensational public experiments of some of these researchers, which mimicked the theatricality and occult interests of their lay competitors, blurred the distinctions that these professionals were attempting to draw between their "legitimate" medical use of hypnosis and the "illegitimate" lay and occult use of it.     

With a Little Help from Our Feds: Understanding State Immigration Enforcement Policy Adoption in American Federalism

Since 2001, state governments have adopted 287(g) cooperative immigration enforcement agreements with the federal government that authorize their law enforcement personnel to assist in detaining violators of civil federal immigration law. Employing a theoretical framework drawn from theories of policy adoption, intergovernmental relations, and immigration research, we test which state‐level political, sociodemographic, geographic, and economic determinants influence states to enter into such a cooperative agreement. In addition to finding that the partisanship of a state's governor, a state's effort on public welfare, and an increase in a state's percentage of Hispanics are related to the adoption of a cooperative immigration enforcement policy, we found evidence of “steam valve federalism” working not at the state level as Spiro (1997) first theorized but at the local level. When a state's localities adopt immigration enforcement agreements with the federal government, the state itself is far less likely to adopt their own. Understanding the reasons states would adopt this type of policy sheds light on current trends in state immigration policy and their effect on future state/federal intergovernmental relations.     

“I spent the first year drinking tea”: Exploring Canadian university researchers’ perspectives on community‐based participatory research involving Indigenous peoples

Community‐based participatory research (CBPR) is generally understood as a process by which decision‐making power and ownership are shared between the researcher and the community involved, bi‐directional research capacity and co‐learning are promoted, and new knowledge is co‐created and disseminated in a manner that is mutually beneficial for those involved. Within the field of Canadian geography we are seeing emerging interest in using CBPR as a way of conducting meaningful and relevant research with Indigenous communities. However, individual interpretations of CBPR's tenets and the ways in which CBPR is operationalized are, in fact, highly variable. In this article we report the findings of an exploratory qualitative case study involving semi‐structured, open‐ended interviews with Canadian university‐based geographers and social scientists in related disciplines who engage in CBPR to explore the relationship between their conceptual understanding of CBPR and their applied research. Our findings reveal some of the tensions for university‐based researchers concerning CBPR in theory and practice.     

Sickle blade life-history and the transition to agriculture: an early Neolithic case study from Southwest Asia

In Southwest Asia, sickle blades first appear early in the sequence of the transition to agriculture. In the past, detailed qualitative research on silica bearing blade stone tools focus on the characterization of use-wear traces such as polish types and accrual rates. In this paper we approach the study of sickle blades slightly different, choosing to examine tool life-history by developing a method to quantitatively estimate harvesting intensity. The method centers on an experiment of cutting cereal stalks and measuring stone blade edge thickness under a scanning electron microscope as a proxy for cutting time. We end with regressing the experimental results to provide an estimation of how intensively archaeological sickle blades recovered from the site of Dhra’, Jordan were used for harvesting. The results, while preliminary, enable an initial interpretation of sickle blades as important tools with long use-life histories during the early Neolithic in the Southern Levant.     

Assessing the reliability of criteria used to identify postcranial bones in sheep, Ovis, and goats, Capra

Criteria developed to distinguish between selected postcranial elements of sheep and goats are evaluated using modern specimens from the collections of the Field Museum of Natural History, the National Museum of Natural History, and the Museum of Anthropology and the Museum of Zoology, University of Michigan. Elements considered are: the distal humerus, proximal and distal radius, distal tibia, distal metapodials, astragalus, calcaneus, and the first and second phalanx. This evaluation includes an assessment of 1385 elements from 49 goat and 84 modern sheep skeletons. It also includes a blind test on elements drawn from 20 specimens taken by six analysts with differing levels of experience. Overall, the criteria evaluated are highly reliable, especially in goats and only slightly less so in sheep. A major exception is the distal tibia, where diagnostic criteria tested proved substantially less reliable than other criteria evaluated here. Strongly positive results were also obtained when the sample was partitioned by sex, domestic status, and age. Results of the blind test show some variability depending on the level of experience of the analyst, underscoring the need for training and access to adequate modern reference collections before attempting to apply these criteria to archaeological assemblages. The results of this assessment stand in stark contrast to those obtained in an earlier assessment of the reliability of criteria used to distinguish between mandibles and mandibular teeth of sheep and goats. In all but a few teeth, dental criteria proved to be much less reliable, especially in goats. They were also significantly less reliable in the identification of both younger and older animals. Unlike dental criteria, there are no biases introduced by variable reliability of postcranial criteria that distort taxon-specific harvest profiles based on long-bones.     

Rice or millets: early farming strategies in prehistoric central Thailand

Ancient seeds from archaeological sites can provide clues that are crucial for understanding and characterizing subsistence strategies. This in turn contributes to our understanding of, and explanations for, the relationship between socioeconomic systems and organization of craft production. This article will examine the relationship between rice and millets at three prehistoric sites from a regional copper-producing center in central Thailand to provide new insights into the subsistence strategy of these communities and to better understand the relationship between these crops and their introduction and use in Southeast Asia.