COMPOSITION OF THE LA GRAUFESENQUE,BANASSAC AND MONTANS TERRA SIGILLATA

The composition diagrams of the La Graufesenque, Banassac and Montans Terra Sigillata are given as well as a calculation method to improve the separation between the workshops with compositions which are very similar. This method can then be generalized.     

ROMAN WINDOW GLASS: A COMPARISON OF FINDINGS FROM THREE DIFFERENT ITALIAN SITES

Thirty‐three samples of window glass and five glass lumps coming from three Italian archaeological sites—the Suasa excavations (Ancona, settled from the third century bc to the fifth to sixth centuries ad ), the Roman town of Mevaniola (Forlì‐Cesena, settled from the Imperial Age up to the fourth century ad ) and Theodoric's Villa of Galeata (Forlì‐Cesena, settled from the sixth century ad onwards)—were analysed to track the changes in the chemical composition and manufacturing technology of window glass through the centuries. The aims of this study were: (1) to establish the origin of the raw materials; (2) to verify the chemical homogeneity among samples coming from different sites and/or produced using different techniques; and (3) to sort the samples into the compositional groups of ancient glass. The analysis of all the chemical variables allowed two groups to be distinguished: (a) finds from Mevaniola and Suasa; and (b) finds from Galeata. All the samples had a silica–soda–lime composition, but the analysis of minor elements—in particular, of Fe, Mn, and Ti—made it possible to split the samples into two groups, with the higher levels of these elements always found in the Galeata samples (HIMT glass). In conclusion, it can be asserted that the main differences between the samples are related to their chronology.     

FIRM PRODUCTIVITY AND INSTITUTIONAL QUALITY: EVIDENCE FROM ITALIAN INDUSTRY

This paper aims to contribute to the debate on the determinants of differentials in firms’ productivity. We test the hypothesis that macro factors, especially the quality of local institutions, play a central role in explaining firm productivity in Italy. To this end, we construct measures of Total Factor Productivity (TFP) for about 4,000 firms by means of different estimation techniques, and a province‐level index of institutional quality. Then, we estimate the relationship between institutional quality and firm‐level TFP. Our results show that the existence of better local institutions might help firms to become more productive.     

OPENNESS TO TRADE AND INDUSTRY COST DISPERSION: EVIDENCE FROM A PANEL OF ITALIAN FIRMS*

ABSTRACT We use Italian firm‐level data to investigate the impact of trade openness on the distribution of firms across marginal cost levels. In so doing, we implement a procedure that allows us to control not only for the standard transmission bias identified in firm‐level TFP regressions but also for the omitted price bias due to imperfect competition. We find that more open industries are characterized by a smaller dispersion of costs across active firms. Moreover, in those industries the average cost is also smaller.     

ROMAN AND MEDIEVAL GLASS FROM THE ITALIAN AREA: BULK CHARACTERIZATION AND RELATIONSHIPS WITH PRODUCTION TECHNOLOGIES*

Compositional investigations were performed on 81 Roman and medieval glass fragments (first to 14th centuries ad ) from four Italian archaeological sites. The samples were soda–lime–silica in composition, with natron as flux for the Roman and early medieval glass samples, and with plant ash as flux for the late medieval ones. The varying colours are due to the differing FeO, Fe ₂ O ₃ , MnO and Sb ₂ O ₃ contents. Hierarchical cluster analysis identified six compositional groups related to age, which were compared with those found in the literature. In this way, technological continuity from the Roman to the early medieval period and the appearance of plant ash technology in the ninth century, 200 years in advance of the period previously believed, are demonstrated.     

BURNT KIMMERIDGIAN SHALE AT EARLY ROMAN SILCHESTER, SOUTH-EAST ENGLAND, AND THE ROMAN POOLE–PURBECK COMPLEX-AGGLOMERATED GEOMATERIALS INDUSTRY

Summary.   A wide range of geomaterials were worked at industrial settlements scattered over an area of c.225 km² in the Poole Harbour–Isle of Purbeck district of modern Dorset. These materials, more than one handled at some sites, included shale ('coal'), burnt shales (yellow, red) and cementstones from the Kimmeridge Clay Formation (Upper Jurassic), Purbeck marble from the Purbeck Group (earliest Cretaceous), hard chalk from the Chalk Group (Upper Cretaceous), and potting clays and sands from the Bracklesham Group (Palaeogene), for South-east Dorset Black-burnished Pottery Category 1. There was also a salt industry, which could have used pottery for packaging. The industrial products are conterminously distributed in southern and central Britain and, in the case of pottery and shale items, reached as far as the northern frontiers. Raw material of red burnt shale was exported to Silchester ( Calleva Atrebatum ), where it was made into mosaic tesserae. Of proven Kimmeridgian age on the evidence of fossils, the mudstone used to make it had been collected and quarried on the coast of the Isle of Purbeck before being burnt. The decline in the demand for stone products, excepting shale, in the second century AD saw an expansion of the potting industry, which persisted into the fifth century. The term complex-agglomerative is introduced to describe this diverse and dispersed enterprise at this highest hierarchical level, examples of which occur elsewhere in the Roman world.     

A RED-FIGURE KRATER: SOUTH ITALIAN OR ETRUSCAN?

Summary: A red-figure krater at Port Sunlight presents problems of attribution. Unusual features of the subjects are discussed - Dionysos reclining on a donkey; a youth with a mirror.     

REIMAGINING ROMAN PORTS AND HARBOURS: THE PORT OF ROMAN LONDON AND WATERFRONT ARCHAEOLOGY

This paper explores some theoretically informed ways in which to use the rich evidence relating to ports, harbours and other waterfront installations in archaeology. It argues that studies of waterfront structures within the specialisms of nautical/maritime and wetland archaeology are extremely important in their own right, but they could also be used to explore broader issues connected with their use and context. These include the cultural and religious significance of water and its dangers, the symbolic significance of landscape change, the relationship between people and their environment and the negotiation of the land/water interface. Examining the evidence of the port of Roman London as a case study, this paper explores the archaeology in its local setting and addresses a number of subjects relating to both its temporal and spatial position. It focuses on the religious significance of water and the implications of altering waterscapes through artificial construction.     

THE SOCIAL STRUCTURE OF A ROMAN VILLA: MARSHFIELD—IRONMONGERS PIECE

Summary. The development of the Romano-British villa at Marshfield is reinterpreted as several phases in the growth of a kin group, analogous to David Clarke's reinterpretation of the Glastonbury village. It begins with two native farmsteads separated by a wall but having in common a shrine. They are replaced by a bipartite house, the internal division between the households being above the demolished wall, but, symbolically, at an angle to it; a likely parallel for this exists in Picardy. The architectural relations of the rooms are used to interpret function. In a second phase alterations suggest the changing relations of the two households, with one becoming markedly superior to the other; the putative shrine, not discernible in the first Romanised phase, is located in the superior house.     

EARLY ROMAN TOWN DEVELOPMENT IN GALLIA BELGICA: A REVIEW of SOME PROBLEMS

Summary: The conventional Claudian date for urban development in Gallia Belgica should be re-examined in the light of earlier occupation at some towns. Equally early were the rural sanctuaries, systematically developed as centres for the rural population. Monumental complexes such as the 'double-forum'may have evolved in the sanctuaries earlier than in the towns and possibly influenced the planning of the latter. Whilst the sanctuaries grew steadily throughout the first century, public building in the towns seem to have slowed down during its second half. A factor here may have been the enormous early development of the villas, especially in the Somme basin, diverting resources from urban building. the sanctuaries, more relevant to the rural population, were perhaps less affected.     

THE HISTORIAN AS A PUBLIC MORALIST: ON THE ROMAN ORIGINS OF A SCHOLARLY PERSONA

In her recent book, Virtus Romana, Catalina Balmaceda provides a fascinating analysis of the concept of virtus in Roman historiography. Although virtus, which translates as courage or more generally as virtue, meant different things to different Roman historians, Balmaceda shows that disagreement was never about whether historians should provide readers with examples of virtue. Historians' differences of opinion focused rather on where such models were to be found and what they should look like. This review essay summarizes Balmaceda's main arguments, raises a question about historians' own virtus, and draws some implications from the book for the study of scholarly personae. Did the persona of the historian as a public moralist, such as is known from nineteenth‐century Europe, originate in ancient Rome?     

IDENTIFICATION OF AN ADHESIVE USED TO REPAIR A ROMAN JAR

A combination of micro-analytical techniques, including thin layer chromatography (TLC), gas chromatography (GC), and combined gas chromatography/mass spectrometry (GC/MS), was employed to study the lipid composition of an adhesive used to repair an Ecton ware jar, recovered from Roman sediments of the River Nene at West Cotton (Rounds, Northamptonshire, U.K.). GC of the total lipid extract of the adhesive showed a complex pattern which was difficult to interpret. TLC was used to fractionate the extract. The fractions were then trimethylsilylated and submitted to GC and GC/MS. Betulin, lupeol, lupenone, allobetul-2-ene, and several other pentacyclic triterpenoid compounds were shown to be present in the ancient material. The similarities between the lipid compositions of the adhesive and of contemporary birch bark tar and a birch bark total lipid extract led to the conclusion that the adhesive was derived largely from birch bark, thus providing the first firm evidence for the use of birch bark tar in ancient Britain.     

ROMAN POTTERY FROM AUGUSTA PRAETORIA (AOSTA,ITALY): A PROVENANCE STUDY

Forty-five sherds of Roman pottery, 21 terrae sigillutae and 24 common wares excavated in Augusta Praeroria, were analysed for 12 elements by atomic absorption and emission spectroscopy. Hierarchical agglomerative cluster analysis, principal component analysis, and non-linear mapping were performed on the analytical data in order to classify the objects in groups which could account for different provenances; soft independent modelling of class analogy (SIMCA) and K nearest neighbours (KNN) were used for solving doubtful assignments. The classification results indicate that local productions of terra sigillatu can be easily distinguished from the imported ones, and that common wares have compositional patterns which differ from those of both local and imported terrae sigillatue.     

LENGTH-UNITS IN ROMAN MILITARY PLANNING: INCHTUTHIL AND COLCHESTER

Summary. The layouts of the Inchtuthil and Colchester legionary fortresses suggest that 7 1/2 and 3 3/4 p.M. units were employed in military as well as civil planning. The 38 units long by 38 1/2 units wide plots occupied by cohortal blocks at Inchtuthil appear to have provided the basis on which the whole fortress was designed and the sizes of other internal buildings seem to have been related to this scheme. Colchester, although much less well-known, shows similarities. Further implications for civil and military planning are considered.     

CARBON AND OXYGEN ISOTOPIC RATIOS: A DATA BASE FOR CLASSICAL GREEK AND ROMAN MARBLE

An isotopic data base of δ¹³C and δ¹⁸O analyses of 528 samples collected from 39 classical Greek and Roman quarries of Turkey, Greece, Italy and Tunisia has been accumulated. The discriminative possibilities of the data base vary from quarry to quarry. Most quarries have a distinctive pattern for either or both variables, but some have more than one grouping. The data also overlap for many quarries preventing a unique provenance assignment. If the alternatives are known so that the total pool of possible sources is reduced, the data base can then discriminate and assign a provenance for most classical marble artifacts.     

OPPIDA AND THE ROMAN ARMY. A REVIEW OF RECENT EVIDENCE

Until recently it has been commonly assumed that the Roman army made relatively little use of pre-exising fortifications such as hillforts and oppida. The accumulation of evidence over the past twent years suggests that this view is to be modified. The informastion now available from Gaul, Germany and especially from southern Britain indicates that military use of prehistoric strongholds was widespread and probably far from rare, notably in he early phases of occupation. Such use might reflect political control in the case of large oppida like the Titelberg, Camulodunum and perhaps Maiden Castle, or the securing of supplies, or possibly on occasion the use of native levies.