PEIRCE AND FOUCAULT ON TIME AND HISTORY: THE TASKS OF (DIS)CONTINUITY

Some have recognized an affinity between Pragmatist thought and that of Foucault, though this affinity is typically cashed out in terms of William James and John Dewey and not Charles Sanders Peirce. This article argues that bringing Foucault and Peirce into collaboration not only shows the relevance of Peirce for Foucault, and vice versa, but also enriches the thought of both thinkers—indeed, it also reveals important implications for the theory of history more generally. Specifically, the article crosses the Peircean concept of habit and the Foucauldian concept of practice (as it operates in the arenas of discourse, power, and self), ultimately decoding them in terms of an account of time that derives from Peirce and that gives a fundamental role to discontinuity. In this way the article shows how Peirce can provide Foucault with an account of time that buttresses and grounds his genealogical approach to history, while at the same time revealing how Foucault can provide Peirce with an account of history. The synergy between the two thinkers offers a way to think about the nature of history that goes beyond what each thinker individually provided.     

The Judicial Bookshelf

The year 2005 will remain notable in Supreme Court history. A nearly unprecedented period of stability in the Court's membership came to an end. The nation witnessed the appointment of a new Chief Justice, and, for the first time since 1971, a President and the Senate confronted the momentous responsibilities of two simultaneous vacancies to fill.     

Heterogeneity effects on possible salinity-driven free convection in low-permeability strata

Although studies of free convection commonly focus on highly permeable strata, but numerical analyses indicate that density-driven free convection may also occur in heterogeneous low-permeability strata. Traditional Rayleigh number criteria are overly conservative in predicting thermohaline convection in these systems; so, numerical models are used to make inferences on the process. Simulations with stochastic realizations of permeability fields show that dense plumes can take preferential pathways to sink through generally low-permeability strata; patch analysis using percolation theory shows that the threshold permeability for the onset of free convection can be as low as 10⁻¹⁶ m² even with a mean permeability of 10⁻¹⁸ m². Threshold permeability for the percolation pathways decreases with increasing concentration gradient, vertical correlation length and the mean and variance of the permeability. The connectedness of relatively high-permeability zones is important in initiating and controlling plume fingers of free convection in both single-layer and sand-shale sequence models. Permeable units above and below are conducive to free convection through intervening low-permeability strata if buoyancy gradients exist. This heterogeneity is on scales that are difficult to sample by drilling and too localized to be simulated in regional models but may be significant in solute transport in these systems.     

Magic darts and messenger molecules: Toward a phytoethnography of indigenous Amazonia

Recent scientific findings on plant intelligence are forcing anthropologists to reconsider indigenous theories of plant vitality. In this article, the authors compare original ethnographic and ethnobotanical research among two different peoples from opposite extremes of lowland South America – the Makushi of Guyana and the Matsigenka of southern Peru – and explore how somatic experiences and the chemosensory properties of plants permeate indigenous understandings of the aetiology of illness and medical efficacy in both the cosmological and microbiological domains. The authors synthesize emerging theory in ecosemiotics, embodiment, plant personhood and plant intelligence with the concept of ‘sensory ecology’ to recast multispecies ethnography as a phytochemical as well as a philosophical endeavour.