A laboratory cave for the study of wall degradation in rock art caves: an implementation in the Vézère area

The aim of this proposal is to present an original approach to the study and preservation of rock art caves. A multidisciplinary study of cave wall alteration will be performed to understand the impact of environmental context on the evolution of wall surfaces. The approach involves the choice of a cave with characteristics similar to painted caves in the studied area (Vézère Valley in Dordogne, France): e.g., cave wall alteration, lithology, morphology, etc. This selected cave is intended to become a laboratory cave, monitored for the acquisition of chemical, physical and biological environmental data on bedrock, air and fluids along with their characteristics. A cave without art or archaeological interest has been chosen specifically to conduct experiments, to make in situ analysis and to obtain samples. The results are to be completed by specific observations in several other caves and compiled in a database.     

Exploring the Relations Between Riverbank Erosion and Geomorphological Controls Using Geographically Weighted Logistic Regression

The relations between riverbank erosion and geomorphological variables that are thought to control or influence erosion are commonly modelled using regression. For a given river, a single regression model might befitted to data on erosion and its geomorphological controls obtained along the river's length. However, it is likely that the influence of some variables may vary with geographical location (i.e., distance upstream). For this reason, the spatially stationary regression model should be replaced with a non‐stationary equivalent. Geographically weighted regression (GWR) is a suitable choice. In this paper, GWR is extended to predict the binary presence or absence of erosion via the logistic model. This extended model was applied to data obtained from historical archives and a spatially intensive field survey of a length of 42 km of the Afon Dyfi in West Wales. The model parameters and the residual deviance of the model varied greatly with distance upstream. The practical implication of the result is that different management practices should be implemented at different locations along the river. Thus, the approach presented allowed inference of spatially varying management practice as a consequence of spatially varying geomorphological process.     

Regional survey and the economic geographies of Britain 1930–1939

This paper re-considers the history of economic geography in the interwar period in Britain. The activities of the discipline are considered in the context of the commercial geographies of this time, and the intensive round of industrial and social surveys undertaken at a regional level in Britain in the period. Taken together, these economic geographies constructed a range of representational and material spaces and helped construct industrial regions characterized by particular types of places, peoples and performances. These surveys, and the production of the economic geographies that they facilitated, became a key intellectual arena where conflicting ideas about the political and economic management of the industrial region and the national economic were acted out. Following the intention of recent work into the histories of geographical knowledge, the essay will seek out the lateral associations of economic geography, paying particular attention to politically situated nature of the economic geographies produced by academics, regional organizations and the Labour Party.     

The Reformation of the Eyes: Apparitions and Optics in Sixteenth- and Seventeenth-Century Europe

Apparitions were the subject of fierce theological and philosophical debate in the period after the Reformation. But these controversies also raised issues fundamental to the nature and organization of human vision. They crossed and recrossed the boundaries between religion and the science and psychology of optics. Apparitions, after all, are things that appear, and spectres are things that are seen. Before they could mean anything to anyone they had to be correctly identified as phenomena. Their religious role, whether Protestant or Catholic, presupposed a perceptual judgement — essentially visual in character — about just what they were. During the early modern period this judgement — this visual identification — became vastly more complex and contentious than ever before, certainly much more so than in the case of medieval ghosts. The sceptics, natural magicians, and atheists turned apparitions into optical tricks played by nature or human artifice; the religious controversialists and demonologists thought that demons might also be responsible. This essay argues that the debate that ensued, irrespective of the confessional allegiances of the protagonists, was the occasion for some of the most sustained and sophisticated of the early modern arguments about truth and illusion in the visual world.     

The rights of a Florida wife: slavery, U.S. expansion, and married women's property law

Civil law rules were adopted in Florida that granted married women property rights long before legal reforms occurred in northern states. This article analyzes white wives' property and law in Florida between 1820 and 1860. Initially, married women's property rights were inadvertently protected by treaty law and limited to women who married before 1818. Wives' right to own separate property in Florida was subsequently reconfirmed in statute and extended to include later marriages. In contrast, nonwhites generally lost the rights and property they had enjoyed under Spain's civil law in the same period. This contrast reveals that in Florida (and other southern borderlands) it was not concern for women, or simply legal precedent, but the desire to incorporate new territory and expand slavery that influenced the development of marital property law. This challenges previous histories, which have excluded the earlier acts in the Southern borderlands and emphasized those passed in the Northeast beginning in the late 1840s. While those later acts were influenced by the early woman's rights movement and by concern for families reduced to poverty during the rise of market capitalism, this case study indicates that expansion of United States territory and slavery were responsible for the earlier married women's property rights in southern borderland territories such as Florida.