Copper production in late prehispanic northern Chile

The spatial organization, scale, and technology of copper production were greatly altered by the Inka incorporation of the Tarapacá Valley of northern Chile during the 15th and 16th centuries. Using survey data, we first document the valley's local pre-Inka copper production tradition, based on the use of wind-driven smelting furnaces known as huayras or huayrachinas. We then trace the transformations in copper production attendant upon imperial incorporation, including the spatial organization and scale of smelting. Based on materials excavated at the site of Tarapacá Viejo, we discuss the evidence for specific stages in the copper production process, such as ore processing, secondary refining, alloying, casting, and the production of finished artifacts. Through this analysis, we shed light on how the Inka reorganized and concentrated copper production at Tarapacá Viejo, and document the adoption of several new techniques, such as lining casting molds with bone ash. This and other lines of evidence indicate linkages between copper production technologies and techniques at Tarapacá Viejo and other Inka installations in Chile and northwestern Argentina. While connections between the Copiapó Valley and Argentina have long been known, such robust evidence has not been previously documented for the Tarapacá Valley.     

Loyalists and lairds: The politics and society of Upper Canada reconsidered

The Lion, the Eagle, and Upper Canada: A Developing Colonial Ideology by Jane Errington. Kingston and Montreal: McGill‐Queen's University Press, 1987. Pp.272. $30.00.

The Idea of Loyalty in Upper Canada, 1784–1850 by David Mills. Kingston and Montreal: McGill‐Queen's University Press, 1988. Pp.x + 238. $27.95.

Becoming Prominent: Regional Leadership in Upper Canada, 1791–1841 by J.K. Johnson. Kingston and Montreal: McGill‐Queen's University Press, 1989. Pp.ix + 277. $29.95.

Attitudes to Social Structure and Mobility in Upper Canada 1815–1840: ‘Here We Are Laird Ourselves’ by Peter A. Russell. Lewiston/ Queenston/Lampeter: Edwin Mellen Press, 1990. Pp.213. US$59.95.     

Writing Political Forests

In this essay, we highlight the intellectual context that shaped our initial conceptualisation of political forests as dynamic spaces and political ecologies, and how our fieldwork and comparative approach shaped our subsequent elaboration of the concept and its empirical manifestations. Of particular significance was our emphasis on incorporated/relational comparison and our multiscale analysis. These approaches allowed us to locate subjects and processes in specific field sites within an emergent global forestry network produced through multiscale interactions and movements within and among colonial and FAO forestry empires. We revisit the key processes through which we learned to see common and contrasting mechanisms that have made forests inherently political in our six research sites in Indonesia, Malaysia, and Thailand, linking these “classic” mechanisms to concepts in wide use today. These concepts include understanding political forests as co-produced, the significance of expertise in their reproduction, and the interactions between politics and the lively materialities of political forests. Among other conclusions, we suggest that the political forest is being replaced by what could be called “political conservation”, which has its own knowledge networks and expertise that displace but also build on political forestry. Finally, we reflect on how these ideas are being further developed by the authors in this symposium, whom we gratefully acknowledge for demonstrating that the politicisation of forests continues to be significant today.     

Laboratory Notes,Laboratory Experiences,and Conceptual Analysis: Understanding the Making of Ohm's First Law in Electricity

Georg Simon Ohm's work in the field of electricity led to what is now considered to be the most fundamental law of electrical circuits, Ohm's Law. Much less known is that only months earlier, Ohm had published another law—one that differed significantly from the now accepted one. The latter entailed a logarithmic relation between the length of the conductor and a parameter that Ohm called “loss of force.” This paper discusses how Ohm came up with an initial law that he felt compelled to correct a few months later. We analyze Ohm's publication as well as his laboratory notes, relating them to our own laboratory experiences while using the replication method to study his work. We also discuss the conceptual background of Ohm's work. We conclude that he was significantly influenced by French studies in the field of electricity, most notably the ones by Charles Augustin Coulomb.     

Wealden nature and the role of London in nineteenth-century artistic imagination

The new outlook on nature as a restorative for jaded urban-dwellers that is associated with Victorians' sense of an increasing separation from their natural environment, had a powerful influence upon the imagination of mid nineteenth-century landscape artists choosing to work in south-east England. Although they established close business relations with the metropolis and provincial cities, they experienced a loss of confidence in London as a subject for landscape painting and with new opportunities for travel provided by railways they preferred to satisfy a quasi-scientific curiosity in the visible appearance of natural and semi-natural beauty in the green world beyond London, especially in the expressively-shaped Weald, long connected with aesthetic appreciation and scientific observation. Their specific contribution of plain-air realism was to conceive the Wealden landscape both as a natural marvel and a human epic, an idea then new and exciting to the mind. Their feelings of awe and wonder have Ruskinian undertones and are inextricably linked with the drama of earth history that natural scientists were simultaneously unfolding in a newly constituted laboratory of field studies. This spiriting of a new, imagined, wilderness out of what wooded nature still survived in a shrunken form after the clearings of pioneer farmers became an inexhaustible source of enrichment to nineteenth-century urban life and conforms at least partially with mid-Victorians' perception of a natural habitat juxtaposed with one of the world's largest and most artificial environments that Victorians themselves were creating. It became a nearly symbolic image of an ideal English landscape which existed largely as a protected paradise of the urban imagination.