Too little,too late: the geochemistry of a 1773 Philadelphia porcelain openwork basket

A dated (1773) openwork basket labelled “PHILADELFIA” attributed to the Bonnin and Morris factory has a lead-bearing, silicious–aluminous–calcic (S-A-C) composition that contrasts with the phosphatic (bone ash) porcelains known to have previously been made during the mid-1760s to early 1770s in what is now the United States. The basket was underfired and so contains relics of a flint (Pb) glass flux, but kiln temperatures were nonetheless sufficient for subsolidus pseudowollastonite and anorthite to have been resorbed, implying that the duration of firing (soaking) near peak kiln temperatures was insufficient to ensure thorough vitrification. During cooling, liquidus pseudowollastonite and silica polymorphs (but not anorthite) formed, showing that the melt was confined to the tridymite–pseudowollastonite cotectic above the Trd–Wol–An eutectic (1170 °C) in the SiO₂–Al₂O₃–CaO system. Rapid cooling is also indicated by quenched silica polymorphs in the relict glass particles. Although Bonnin and Morris employed some former Bow (London, c. 1743–74) workers, the S-A-C wares initially produced by this factory are compositionally distinct from the 1773 basket, which in this regard more closely resembles the body and glaze of a reputed Chelsea triangle-period (London, c. 1745–49) vessel. Regardless of how they obtained this technology, it is ironic that Bonnin and Morris chose to abandon phosphatic pastes in favour of what in Britain had become an obsolete formula.     

Internal oxidation of cast iron artifacts from an 18th-century steel cementation furnace

Heavily corroded metal artifacts recovered from the site of an 18th-century steel cementation furnace in Trenton, New Jersey, are cast iron altered by internal oxidation. The progress of the internal oxidation process was followed by comparison with the microstructure of cast iron exposed to high temperature in a wood-burning fireplace. The graphite flake structure of the cast iron allows deep, rapid penetration of oxygen that reacts at the iron–carbon interfaces within the iron to form iron oxides that eventually replace the graphite flakes. Microprobe analyses show that the silicon in the cast iron is converted to knebelite that also serves as the host for phosphorus. Sulfur dispersed in the internal oxidation product and porosity appear to be responsible for rapid rusting of the artifacts. Internal nitriding accompanies the oxidation. The Trenton artifacts are interpreted as grate bars from the fire box of a cementation furnace.     

Trace-element evidence for foreigners at a Maya port in Northern Yucatan

The present paper explores the potentials of trace elements in human dental enamel to indicate mobility and to detect the presence of individuals who had migrated into a community after childhood. Three Pre-Hispanic samples of infants from the Yucatán peninsula were chosen, one from the northern coast (Xcambó), one from the coast of the Gulf of Mexico (Campeche) and the last one from the tropical inland rain forest (Calakmul). Infants’ first permanent molars are the term of reference because infants were very likely born in the same place where they died and therefore are supposed to represent the local geo-chemical environment. Their chemical signature was then compared to the one of the adults from the site of Xcambó. The elemental composition was recorded by means of laser ablation-time of flight-ICP-MS. Sr and Ba (and secondly Mg and I) discriminate well the three infant samples. All the Early Classic adults from Xcambó fall within the range of variation of the site’s infants, while 25% of the Late Classic adults fall outside the range in agreement with archaeological, bioarcheological, and isotopic evidence. LA-ICP-Ms analyses of trace elements in archaeological samples can be an important analytical tool to detect foreigners in local populations. The selection of infants as reference values helps reduce the limits faced by trace element analyses in past human populations studies.     

Talking class,talking race: language,class, and race in the call center industry in South Africa

Against a backdrop of declining manufacturing employment, this article uses a study of the call center industry to argue that English language proficiency is central to new service jobs in post-apartheid South Africa. Drawing on research in Durban, we in this study show that access to call center work—especially the highest paid niches—is heavily mediated by English language skills generally attainable only at the most elite high schools. In doing so, we argue that access to English-medium education can challenge racial disadvantage, but simultaneously that English can help to consolidate white privilege through the continued association of a ‘prestigious’ accent with whiteness. The study accordingly reveals the importance of language in the changing intersectionality of race and class and, in doing so, underlines the value of social and cultural perspectives in labor geography.     

On the Book of Devotions,Deposited by Cardinal Howard in the Library of the Dominican Convent at Bornheim in 1659

This paper reports the results of the excavation of an Early Bronze Age cist cemetery on the mid-Northumberland coast at Howick. The Bronze Age site was discovered during the investigation of a Mesolithic hut site, the latter having been published separately as a monograph. A total of five cists were found with only one being adult-sized, the rest presumably for infants. Due to the acidic conditions on the site, only a few fragments of a small skull were found in Cist 2. Other small finds included a small sherd of Food Vessel urn in an area of disturbance next to Cist 5, smoothed limestone cobbles and some nodules of yellow ochre. Flints were found in most of the feature fills, but these are considered to be residual as they are directly comparable to the narrow blade material found within the Mesolithic hut and its environs. The siting of Early Bronze Age cist burials in coastal locations is thought to reflect contemporary settlement on the coastal margin and its hinterland. With no Bronze Age dwelling sites known from this area, these cemeteries have an added significance as they provide indirect evidence for Bronze Age settlement on the North-East coastal plain.     

Context for a carnyx: excavation of a long-lived ritual site at Leitchestown,Deskford, Moray,north-east Scotland

Excavations at the findspot of the Deskford carnyx, a major piece of Iron Age decorated metalwork found in a bog in the early nineteenth century, revealed a special location with a long history. Early Neolithic activity on the adjacent ridge consisted of massive postholes and pits, suggesting a ceremonial site. An Early Bronze Age cremation became the focus for a feasting event in the Middle Bronze Age. Around this time, peat began to form in the valley, with vessels of pot and wood smashed and deposited there; these activities on ridge and bog may be connected. Activity in the bog intensified in the later Iron Age, when offerings included quartz pebbles, the dismantled carnyx head, and two unusual animal bone deposits. The ridge was cut off at this period by a complex enclosure system. This Iron Age activity is interpreted as communal rituals at a time of increasing social tension. The site’s significance in this period may stem from its unusual landscape character, with flowing water to one side and a bog to the other. The area saw occasional activity in the Early Medieval period, but its significance had waned.     

A Unique Project of Mission: Forty Years on,a Personal Memoire

Fifty years ago, Call to the North was conceived against the background of sectarian terrorism. This was a unique occasion when all the traditional Christian churches of the North of England were engaged in unitedly presenting the Christian faith to the general population. The exercise was led by the Anglican Archbishop of York together with the Roman Catholic Archbishop of Liverpool and Dr John Marsh representing the Free Churches.

The objectives of the exercise, the methods employed, the problems encountered and its eventual outcome in 1973 are outlined, together with an account of the Roman Catholic Archbishop’s strategy of seeking Pope Paul VI’s support to help his traditional dioceses come to terms with the new Vatican thinking of Pope John XXIII and Vatican II.

The account concludes with a reflection on the historic outcome of this unique exercise.