A systematic approach to the recovery and identification of starches from carbonised deposits on ceramic vessels

Starch granules are being successfully recovered from an increasing range of artefacts. Here we present the recovery of starches from carbonised ceramic ‘foodcrusts’ from late Mesolithic–early Neolithic residues at the site of Neustadt in northern Germany. A method for investigating background loading of residues with contaminant starches is proposed by comparing interior ‘foodcrusts’ versus exterior ‘sooting’, for the purposes of eliminating samples with insignificant quantities of grains from subsequent identification procedures. The classification of starches to plant taxon is traditionally achieved by manual observations and measurement of nominal and ratio morphological variables. Here, we present a method for the automated classification of granules, using software developed in-house. The results show that when multiple granules are considered, the species selected as modern reference examples can be classified to high levels of specificity. When applied to the archaeological samples we show that wild plant resources persist in importance across the transition to agriculture, with high proportions of granule forms consistent with acorn (Quercus sp.) occurring in all samples. Hazelnut (Corylus avellana) types are less well-represented suggesting it was not an important food in the context of pottery, and may have been over-represented in the repertoire of hunter–gatherer resources. Cereals are not represented in any of the samples, supporting the notion that their adoption may have been a slow process, occurring more gradually than for other domesticated foods, or that they were not initially processed in ceramic vessels.     

A New Artefact Typology for the Study of Medieval Arrowheads

ARCHAEOLOGICALLY recovered arrowheads from the British Isles. dated to between the roth and 16th centuries are examined. Hie exisiting arrowhead typology in the London Museum Medieval Catalogue is assessed and a new typology consisting of 28 generic forms, and subdivided into functional groups, is suggested.     

Review article

Franklin Hugh Adler, Italian Industrialists from Liberalism to Fascism. The Political Development of the Industrial Bourgeoisie, Cambridge University Press, Cambridge, 1996, xv + 458 pp., ISBN 0–521–433406–8 hbk, £40.00

Giuseppe Berta, Il governo degli interessi. Industriali, rappresentanza e politica nell'Italia del nord‐ovest 1906–1924, Marsilio, Venice, 1996, xv + 175 pp., ISBN 88–317–6342–3 pbk, 32,000 Lire

Giorgio Fiocca, Storia della Confindustria 1900–1914, Marsilio, Venice, 1994, 266 pp., ISBN 88–317–5850–0 hbk, 70,000 Lire     

Using the Public Open Space Attributable Index tool to assess children’s public open space use and access by independent mobility

This study examined associations between public open space (POS) attributes and children’s use, and independent mobility to, POS in Auckland, New Zealand. Overall 240 children aged 9–12 years and their parents/caregivers participated. Data were sourced from child travel diaries and parent telephone interviews. The Public Open Spaces Attributable Index (POSAI) assessed POS quality and quantity. Associations were examined between age, sex, ethnicity, parental licence of freedom score, and POSAI with: (1) child trips to POS and (2) independently mobile trips to POS. Children made a total of 68 trips to POS over a seven-day period; 35 of these were independently mobile. Child ethnicity was related to child trips to POS. Independent trips to POS differed by ethnicity and parental licence of freedom. This research utilised a new tool, the POSAI, to examine associations of POS use and independent mobility in children living in urban neighbourhoods.     

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.