Obsidian hydration at high elevation: Archaic quarrying at the Chivay source,southern Peru

We examine obsidian hydration as a means to date archaeological sites at high elevation in the central Andes, and in particular quarry sites that are difficult to date by radiocarbon means. The Chivay obsidian source lies in a volcanic depression above the Colca Valley in Arequipa, Peru (71.5355° S, 15.6423° E) at 4950 masl. We compare obsidian hydration readings from one quarry and two workshop locations. Ninety-one flakes from the quarry pit, and 61 and 33 flakes from the workshops were analyzed for hydration bands. Of these, 68 from the quarry, and 54 and 33, respectively from the workshops produced at least one culturally meaningful hydration band. As expected, obsidian appears to hydrate slowly at this high elevation. Yet, variation in hydration readings is low within stratigraphic contexts, suggesting relatively narrow windows of knapping activities in each excavation level. A small number of radiocarbon dates allow us to develop a preliminary hydration rate for Chivay obsidian in this high elevation location. Hydration data indicate that intensive quarrying began by 3800 cal. BC and stopped ca. 2300 cal. BC. By contrast, the two workshops appear to have been deposited 2900 and 1200 cal. BC, and 2700 and 2400 cal. BC. The data are consistent with an uptick in obsidian use by at least the Terminal Archaic period.     

SPACE,TRUST, AND COMMUNAL ACTION: RESULTS FROM FIELD EXPERIMENTS IN SOUTHEAST ASIA*

ABSTRACT This paper examines the spatial dimensions of trust in two Southeast Asian cities using data from both household surveys and field experiments conducted in low‐income communities. The results suggest that space and location are important to understanding communal action and trust in developing countries. Not surprisingly, space matters in different ways depending on culture, history and the political‐economy of a particular country or city.     

THE GRAND PARALLEL: A CONSISTENT LATITUDE OF LATE WOODLAND AND CADDO MULTIMOUND CENTERS IN THE LOWER MISSISSIPPI VALLEY AND EASTERN TEXAS

During the Late Woodland subperiod between A.D. 400 to 1200, six major multimound centers in eastern Texas and the Lower Mississippi Valley were established on a consistent latitude of 31.6 degrees north. The six sites comprising the pattern include, from west to east: George C. Davis and Washington Square in eastern Texas; Troyville, the Elkhorn/Frogmore/Churupa three-mound cluster, and Deprato in Louisiana; and Emerald Mound in Mississippi. Troyville, a major population center during the Baytown period from A.D. 400 to 700, is the earliest of the constituent sites. Emerald, among the latest sites, was apparently founded at the end of the Late Woodland or shortly thereafter. Several lines of evidence suggest the site distribution is not random. Rather, the pattern may reflect an emphasis on cardinal directions as a significant organizing principle in the layout of settlements, structures, burials, and other features in Caddo and Lower Mississippi Valley societies. This principle has rarely been noted on a macro-regional scale. I propose a hypothetical model of the sequence and processes by which the pattern formed. The model postulates that the same organizational principles operating at the site level also operated at the intersite and interregional level as mound centers were abandoned and new ones were established on socially sanctioned axes.     

The uses of soil stabilizing gel media in the conservation of large and small shipwreck artifacts

The recovery of a marine steam engine, which lay for 113 years in the hull of an iron shipwreck, SS Xantho , presented conservators with a big packing/storage problem.
Collecting large quantities of ceramic sherds and glass fragments from shipwreck sites can lead to a compromise situation developing with regard to storage/packing of these materials. Some damage is likely to occur during transit to the conservation laboratory. Similarly, storing artifacts onboard an expedition work boat presents some risks during unsettled sea conditions.
This paper describes the use of two gel media (normally used for agricultural purposes) with respect to their suitability for providing interim storage environments and protection during travel for large (concreted) and small artifacts. The application of Agrosoke and Erosel during field trials on HMS Pandora (1791), the Foam (1893), SS Xantho (1872) and the H.E.I.C. ship Trial (1622) are described with methods of preparation and use. Problems associated with the use of chemical additives are mentioned though conclusions are not drawn for want of further investigation.     

Harehope Hospital and The Arrival of The Order of St Lazarus in England*

A previously unknown deed of the mid-twelfth century significantly changes our understanding of the foundation of the leper hospital at Harehope (Northumberland), which belonged to the Knights of St Lazarus. The deed prompts a reexamination of the introduction of the order of St Lazarus to England. A rereading of contemporary evidence allows parallels to be drawn with the introduction of the order to France, clarifies the founding role of Roger de Mowbray, and opens the possibility that the order’s first establishment in England was at Harehope rather than at Burton Lazars in Leicestershire.