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991.
Summary. The extent to which archaeological evidence can be used to identify and account for an urban hierarchy in England between the eighth and eleventh centuries AD is assessed in this article. Using the later medieval evidence as a control, it is suggested that the archaeological data could be used not only to compare the relative condition of towns but also to reconstruct the general economic trends which may have been responsible for emphasising differences between towns. Despite the apparently rudimentary character of the urban network in the eighth and early ninth centuries, the strength of the economy may have been underestimated. In contrast, the development of a three-tier hierarchy coupled with ubiquitous urban growth in the tenth century may have been overemphasised. Town planning programmes in the south and midlands may not have been accompanied by rapid urban development whereas there is plentiful evidence for town growth in the north. This differential development may be explained by a greater economic vitality in the north which was not experienced in the south until the later tenth century. The later tenth and early eleventh centuries may have marked a period of pronounced and rapid urban growth and differentiation in the south.  相似文献   
992.
Book reviews     
AN AUSTRALIAN IN INDIA. By the Rt. Hon. R. G. Casey. 1947. (London: Hollis and Carter, p. 120.)

Arnold J. Toynbee: A STUDY OF HISTORY. Abridgment of Volumes I‐VI by D. C. Somervell, 1946. (Oxford University Press, pp. 617).

AUSTRALIAN CONTRIBUTIONS TO THE EVOLUTION OF PARLIAMENTARY GOVERNMENT. By T. P. Fry, 1947. (University of Queensland Papers; Faculty of Law, Volume I, No. 1, pp. 21).

EDUCATION IN FASCIST ITALY. By L. Minio‐Paluello. 1946. (Oxford University Press, pp. xiv and 236).

THE PROBLEM OF EDUCATION IN DEPENDENT TERRITORIES. (Journal of Negro Education. The Yearbook Number XV. Published for The Bureau of Educational Research, Howard University, by The Howard University Press, Howard University, ‘Washington 1, D.C.) 1946. pp. 263–578.

COLONIAL ADMINISTRATION BY EUROPEAN POWERS. A series of papers read at King's College, London, 14th November to 12th December, 1946; by Jose de Almada, Robert Godding, Lord Hailey, A. M. Joekes, and H. Laurentie, 1947. (Royal Institute of International Affairs, pp. xiii +96).

THE LOST WAR: A Japanese Reporter's Inside Story. By Masuo Kato. 1946. (New York: Knopf, pp. 264).

THE FOREIGN POLICY OF SOVIET RUSSIA: Volume I. 1929–36. By Max Beloff. 1947. (Oxford University Press, pp. xii +261 and map).  相似文献   

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995.
Before the main burst of agricultural improvements, taking place in Scotland in the latter part of the eighteenth century, farming was carried out from fermtouns; these were groupings of farmsteadings and their fields. This paper seeks to determine the factors underlying the decisions that were taken in the location of the farmsteads and the different elements into which the agricultural land was divided. Isolated for examination are the distance-decay function and natural environmental factors, basically those of soil conditions. The importance of natural soil drainage conditions appears to decide the location of both intensively and extensively cultivated land while in many cases the farmsteadings also lie closest to the permanent arable land. Definite statements about the decision-making process cannot, however, be made due to our present rudimentary understanding of the stability of settlement sites and the true origins of the infield-outfield system.  相似文献   
996.
997.
In this study we applied a multidisciplinary approach, coupling geophysical and geochemical measurements, to unveil the provenance of 170 obsidian flakes, collected on the volcanic island of Ustica (Sicily). On this island there are some prehistoric settlements dated from the Neolithic to the Middle Bronze Age. Despite not having geological outcrops of obsidian rocks, the countryside of Ustica is rich in fragments of this volcanic glass, imported from other source areas. The study of obsidian findings was carried out first through visual observations and density measurements. At least two different obsidian families have been distinguished, probably imported from Lipari and Pantelleria islands. Analysing the magnetic properties of the samples, these two main sources were confirmed, but the possibility of other provenances was inferred. Finally, we characterized the geochemical signature of the Ustica obsidians by performing microchemical analyses through electron microprobe (EMPA) and laser ablation (LA–ICP–MS). The results were compared with literature data, confirming the presence of the Lipari and Pantelleria sources (Sicily) and indicating for the first time in this part of Italy a third provenance from Palmarola island (Latium). Our results shed new light on the commercial exchanges in the peri‐Tyrrhenian area during the prehistoric age.  相似文献   
998.
The bronze wares of the Han Dynasty excavated in Chongqing are decorated with plating patterns, maintaining an exquisite lustre right up to modern times after the covering patina is cleared away. In this paper, a plated fragment of the Han Dynasty from the Wushan County Museum was characterized by combining optical microscopy (OM), scanning electron microscopy with X‐ray energy‐dispersive spectrometry (SEM–EDS), X‐ray fluorescence analysis (XRF), X‐ray diffraction (XRD) and X‐ray photoelectron spectroscopy (XPS). The results showed that the bronze fragment was gilded with a ~ 3 μm thick gilded layer and a ~ 20 μm thick silvered layer. The high concentration of Hg and Hg‐rich intermetallic compounds confirmed the existence of mercury gilding/silvering technology, for example, Au9Hg in the gilded layer and Ag13Hg7 in the silvered layer. An ordered stripe structure was observed in the gilded surface, corresponding to the formation of rod‐like, intermetallic Au–Hg compounds. Specifically, a high concentration of Au was detected in the silvered layer. The exploration of gilded/silvered bronze casts light on this ancient technology and the benefit of identifying, protecting and reproducing it.  相似文献   
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