Determining Olmec maize use through bulk stable carbon isotope analysis

Bulk stable carbon isotope analysis on absorbed organic residues in ceramics can be an effective method for discerning patterns of maize use when the ceramics come from relatively uniform archaeological contexts. The bulk stable carbon isotope method is faster and less costly than the more commonly used compound-specific stable carbon isotope analysis. Moreover, the bulk stable carbon isotope method can determine the presence of C4 plant carbon in samples in which organic compounds have degraded. Bulk stable carbon isotope analysis was used to discern patterns of maize (Zea mays mays) use among a sample of 24 ceramic sherds from an Early Franco Period feasting deposit (ca. cal 650 B.C.) at the Olmec site of San Andrés, La Venta, Tabasco, Mexico. A comparison of the δ 13C results of different categories of ceramics showed that proportionally more maize was used in luxury beverage service wares than in utilitarian vessels, suggesting that maize-based beverages were prominent in this probable elite feasting episode.     

Unterwegs zu einer gelungenen Popularisierung sinologischen Wissens: Die Dame mit der Phönixkrone: Tang-zeitliche Grabfunde der Adeligen Li Chui (711–736)

In a popular scientific way this collection of essays is intended to present to a wider audience the findings of the excavation and preservation of the hitherto untouched tomb of Li Chui 李倕 (711–736), a 3rd degree cousin of Tang Emperor Li Longji 李隆基 as they had been documented in an interdisciplinary scientific publication before. Most remarkable among the objects excavated were her rich jewellery headgear and appliqués on her dress for their good condition and completeness. Whereas the majority of the essays go into the details of an archaeological and historical analysis supplemented by comparative aspects, there are some irrelevant and tiring essays that run off the topic of the book, besides other shortcomings. In conclusion the reviewer discusses the criteria that should be applied to any kind of popular scientific publication.     

Andrew Marvell,the Lord Maynard and the Ballastage Office

In the Restoration, Andrew Marvell was elected to the Elder Brethren of the London (Deptford) Trinity House (May 1674). Some “new” documents reveal him assisting that shipmasters’ corporation in its business. In this work, he was helping to protect a charity, shoring up a corporate bulwark against the rising tide of Court interest; he was soon to lament in An Account of the Growth of Popery and Arbitrary Government (1677). At issue was the drafting of letters rejecting a claim by the Lord Maynard, a prominent courtier who, with the support of James Duke of York and of Charles II, sought the reversion of the Ballastage Office. That lucrative office was a major resource for the London Trinity House, and one which fuller profits it was reluctant to concede. Whatever Marvell's own observation of decorum, the heavy correction of his initial draughts shows his more abrupt style coming under review, with a more flourishing courtliness characterizing the final letters sent by the group.     

A 3D morphometric analysis of surface geometry in Levallois cores: patterns of stability and variability across regions and their implications

Levallois cores and products were manufactured by hominin populations distributed across wide regions of Africa and Eurasia. Levallois technology remains an important focus for research in Palaeolithic archaeology, yet quantitative morphological comparisons of Levallois core morphology from different regions remain rare. Here, utilizing Levallois cores from Africa, the Near East, Europe, and the Indian subcontinent, patterns of morphological variability in the shape of the Levallois flaking surface and core outline (margin) shape were examined for patterns of variability and stability across regions using 3D geometric morphometrics. The multivariate statistical shape analyses undertaken revealed a clear pattern: that is, the greatest levels of shape variability in Levallois cores is evident in the form of their outline (planform) shape. Conversely, the geometrical relationship between the margin of the Levallois cores and their topological surface morphology was relatively uniform. This pattern of variability was evident in terms of variation both across regions and between cores from the same locality. These results indicate that the outline form of such cores was a less important variable than the geometric/topological properties of the surface morphology and, in particular, the relationship between the margin of the core and those variables. These results have implications for why it has been reported that replicating such cores in modern experiments is a particularly difficult task. The specific interrelationship between the geometric properties of the core and the core margin provide further evidence that Levallois core technology would be unlikely to emerge from the context of opportunistic migrating platform reduction strategies (such as those seen in many Mode 1 industries). If, as is widely suggested, Levallois cores were deliberate products in Pleistocene contexts, these results also hint that relatively sophisticated means of social transmission (i.e. teaching) may have been required to sustain their production over time and space.