THE HISTORY AND THEORY OF EMPIRES

Contemporary histories and theories of empire generally remain within boundaries inspired by varieties of liberalism, and by Marxian theory and its hybrids, in which changing modes of production determine the forms of power, including empire. Liberal theorists and historians of empire generally trace a complex process in which expanding imperial power systems led ultimately to nation‐states, democracy, and market economies. For Marxists and postmodern theorists, the formal aspects of empire remain unimportant compared to the broader workings of modes of production and particularly, the global power of capitalism. Michael Hardt and Antonio Negri use the word “empire” to describe the workings of contemporary capitalism and its myriad forms of power. Whether they rely upon the formal definitions of empire or the Marxian‐postmodern one, theories of empire often descend from modern utopian visions: perhaps the Kantian variety emphasizing a peaceful union of states and collective learning, or the Marxian one, although now taking into account changes in the mode of production and victims unattended to by Marx and Engels. New technologies and communications networks impress all contemporary theorists. Some proclaim the end of modern power systems and empire; others find empire in a new, postmodern form. Nonetheless, there are stubborn continuities with the modern in the very persistence of modern utopias, the dominance of nation‐states, the pursuit of democracy, and the durability of capitalism. Theorists of power and empire have to explain these and other continuities, alongside the disappearance of the more than 400‐year‐old balance‐of‐power system in which imperial powers in the European core finally delivered vast power to the United States and the Soviet Union, and created new technologies that strengthen human connection as well as threaten vast destruction. The question of the power of the United States and its imperial status commands the center of attention.     

Solubility of quartz in crustal fluids: experiments and general equations for salt solutions and H2O–CO2 mixtures at 400–800°C and 0.1–0.9 GPa

The solubility of quartz has been measured in a wide range of salt solutions at 800°C and 0.5 GPa, and in NaCl, CaCl₂ and CsCl solutions and H₂O–CO₂ fluids at six additional P–T conditions ranging from 400°C at 0.1 GPa to 800°C at 0.9 GPa. The experiments cover a wide range of compositions along each binary. At P–T conditions where the density of pure water is low (0.43 g cm^?3), addition of most salts produces an enhancement of quartz solubility at low to moderate salt concentrations (salt‐in effect), although quartz solubility falls with further decrease in X_H2O. At higher fluid densities (0.7 g cm^?3 and greater), the salt‐in effect is generally absent, although this depends on both the cation present and the actual P–T conditions. The salt‐in effect is most readily produced by chloride salts of large monovalent cations, while CaCl₂ only produced a salt‐in effect at the most extreme conditions of high‐T and low‐P investigated (800°C at 0.2 GPa). Under most crustal conditions, the addition of common salts to aqueous fluids results in a lowering of quartz solubility relative to that in pure water (salt‐out effect). Comparing quartz solubility in different fluids by calculating X_H2O on the basis that all salts are fully associated under all conditions yields higher quartz solubility in solutions of monovalent salts than in solutions of divalent salts, absolute values are also influenced by cation radius. Quartz solubility measurements have been fitted to a Setchenow‐type equation, modified to take account of the separate effects of both the lowering of X_H2O and the specific effects of different salts, which are treated as arising through distinct patterns of non‐ideal behaviour, rather than the explicit formation of additional silica complexes with salt components. Quartz solubility in H₂O–CO₂ fluids can be treated as ideal, if the solvation number of aqueous silica is taken as 3.5. For this system the solubility (molality) of quartz in the binary fluid, S is related to its solubility in pure water at the same P–T conditions, S^o, by: Quartz solubility in binary salt systems (H₂O–RCl_n) can be fitted to the relationship: where salt concentration mRCl_n is expressed as molality and the exponent b has a value of 1 except under conditions where salting‐in is observed at low salt concentrations, in which case it is <1. Under most crustal conditions, the solubility of quartz in NaCl solutions is given to a good approximation by: We propose that quartz solubility in multicomponent fluids can be estimated from an extended expression, calculating X_H2O based on the total fluid composition (including dissolved gasses), and adding terms for each major salt present. Our experimental results on H₂O–NaCl–CO₂ fluids are satisfactorily predicted on this basis. An important implication of the results presented here is that there are circumstances where the migration of a fluid from one quartz‐bearing host into another, if it is accompanied by re‐equilibration through cation exchange, may lead to dissolution or precipitation of quartz even at constant P and T, with concomitant modification of the permeability structure of the deep crust.     

Hubris and melancholy in multinational states

ABSTRACT. The article sets out to explore the rather different roles that hubris and melancholy can play in the relations between majority and minority nationalities within multinational states. In the case of majority‐type nationalities, there is a sense of being a Staatsvolk, a feeling reinforced by linguistic, cultural, geographical, and political characteristics associated with the larger nation‐state. There may also be a sense of pride caught up with the larger identity between the nation‐state and the empire with which it is associated. For their part, minority‐type nationalities have been more prone to express their national sentiment in melancholic terms. Hence a tendency to dwell on lost battles of the past, on suppressed rebellions, on recurrent threats of assimilation and linguistic extinction. There may be elements both of hubris and of melancholy to national sentiment in multinational states, and the dialectic between the two colours their overall political development.     

FOURTH MILLENNIUM BC SILVER FROM TELL ESH-SHUNA, JORDAN: ARCHAEOMETALLURGICAL INVESTIGATION AND SOME THOUGHTS ON CERAMIC SKEUOMORPHS

Summary. Analytical and contextual details are given for a piece of silver sheet recovered by dry-sieving from a fourth millennium B.C. deposit at Tell esh-Shuna in the north Jordan Valley. Analysis proved that the fragment was composed of a silver-gold-copper alloy. The possible origin of such aurian silver artefacts is considered in the light of current geological evidence, and alternative mechanisms for their appearance reviewed, taking into consideration recent data pertaining to the use of 'non-utilitarian' metals in the southern Levant during the fifth and fourth millennia B.C. Reasons are given for believing that silver artefacts are under-represented in the archaeological record, and the imitation of silver vessels is suggested as a possible explanation for the appearance in Palestine of the distinctive Grey Burnished ceramics at the beginning of the Early Bronze Age.