Social areas in Beijing

Cities in the Western world have been subjected to a spatial process that essentially reflects rules of the market economy. People with ‘might’, defined in terms of money, have priority access to better residential locations. This allows a larger measure of personal preference to sway on residential location, and has ushered in the secondary factors of family or life–cycle effects as well as individual perception and choice regarding what is an acceptable neighbourhood and acceptable distance for commuting. Some parallel work has been done in socialist and Third World cities in the 1970s and 1980s which provides evidence of divergence from the original construct. Yet due to lack of good quality and sufficient data and general lack of interest in the social geography of cities there was little work done in China. Up to 1990, Chinese cities had combined the characteristics of socialist central planning, and characteristics of Third World cities of low level of economic development and limited ability of city governments in improving urban housing. Based on the latest 1990 Census, we study the social areas of Beijing of 1990 and the dynamics behind their formation. In particular, we shall highlight the impacts of the housing supply situation and allocation under central planning and the interrelationship between these and the conventional social areas dynamics. The Opening and Reform after 1978 has introduced new dynamics in China's urban social space. The 1990 census netted out some evidence of these new factors. However, their real impact may only be more adequately measured by the coming census in 2000. Limited by the census data, our examination has excluded the latest situation (after 1990). In spite of the use of the Shevky and Bell construct the purpose of the present study focuses on understanding the social geography of contemporary Chinese cities, and provides a useful historic and ideological dimension for comparative studies for related key concepts in urban and social geography.     

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.     

Geochemistry of sauceboats excavated from Independence National Historical Park (Philadelphia): evidence for a Bonnin and Morris (c. 1770–73) provenance and implications for the development of nascent American porcelain wares

Porcelain sauceboats excavated from a privy with a late 18th century (1786 or later) context at Independence National Historical Park (INHP) are anomalously Al-rich compared with previously analysed Anglo-American sulphurous phosphatic wares. Apart from their S content, they are most similar to phosphatic W^m Reid porcelain (Brownlow Hill, Liverpool, c. 1755–67, and its branch at Shelton, Staffordshire) in terms of their major element constituents, but they contain heavy minerals (e.g., TiO₂ polymorphs) and in this regard resemble a dated (1773) silicious-aluminous-calcic (S-A-C) Bonnin and Morris porcelain (Philadelphia) openwork porcelain basket. In terms of morphology and composition, some TiO₂ polymorphs in the 1773 basket match those from clay from White Clay Creek, Delaware, a resource reputedly exploited by Bonnin and Morris. Their high Nb/Cr ratios indicate derivation from a metapelitic (or granitic pegmatite) source. So too do some from the INHP sauceboats, although others are chrome-rich (∼1% Cr₂O₃), indicating a mafic source. The bedrock beneath White Clay Creek includes metasediments, granitic pegmatite, and metabasites (e.g., of the Wissahickon Formation), pointing to a local source for the TiO₂ polymorphs in the porcelains described here. Although the evidence for a Bonnin and Morris provenance for the INHP sauceboats is circumstantial, their enrichment in heavy minerals, unusual – perhaps experimental – compositions, and aesthetic characteristics nonetheless suggest a Philadelphia origin for these artifacts. The compositions of 18th century Philadelphia porcelain support the contention that knowledge of phosphatic and S-A-C pastes originating in London was transferred first to Staffordshire and Liverpool, and then to Philadelphia, perhaps via a potter by the name of W^m Ball.     

A SUMMARY OF THE GLASGOW CONFERENCE ON SOVIET ENVIRONMENTAL POLICIES AND PRACTICES

A meeting of the Advisory Panel on a major research project entitled “Soviet Environmental Policies and Practices: Most Critical Investment Priorities” was convened in Glasgow, Scotland on March 12 and 13, 1988. More than a dozen specialists from Britain, West Germany, and the United States participated. The meeting was hosted by the Institute of Soviet and East European Studies of Glasgow University. The results are summarized below.