Pliocene reversal of late Neogene aridification.

The Pliocene epoch (5.3-2.6 Ma) represents the most recent geological interval in which global temperatures were several degrees warmer than today and is therefore considered our best analog for a future anthropogenic greenhouse world. However, our understanding of Pliocene climates is limited by poor age control on existing terrestrial climate archives, especially in the Southern Hemisphere, and by persistent disagreement between paleo-data and models concerning the magnitude of regional warming and/or wetting that occurred in response to increased greenhouse forcing. To address these problems, here we document the evolution of Southern Hemisphere hydroclimate from the latest Miocene to the middle Pliocene using radiometrically-dated fossil pollen records preserved in speleothems from semiarid southern Australia. These data reveal an abrupt onset of warm and wet climates early within the Pliocene, driving complete biome turnover. Pliocene warmth thus clearly represents a discrete interval which reversed a long-term trend of late Neogene cooling and aridification, rather than being simply the most recent period of greater-than-modern warmth within a continuously cooling trajectory. These findings demonstrate the importance of high-resolution chronologies to accompany paleoclimate data and also highlight the question of what initiated the sustained interval of Pliocene warmth.

John Martyn Harlow: 'obscure country physician?'

If John Martyn Harlow is known at all in the neurosciences, it is because he was the physician who attended Phineas Gage and followed up his case. Although Harlow's brief but insightful accounts of the changes in Gage's personality are fairly well recognized, and his skill in treating Gage often acknowledged, Harlow himself is, for the most part, the shadowy figure caught by the self-depreciatory characterization of the subtitle of this paper. Although his contribution to the neurosciences was singular, literally and figuratively, he deserves a place in the history of the subject. Harlow's training in antiphlogistic therapy can be seen in his treatment of Gage and in his evaluation of its results. As a medical student, he was also exposed to phrenological doctrine, the influence of which can also be seen in his  appreciation and explanation of some aspects of Gage's behaviour.  Manuscript materials, newspaper reports, and other little known material are used here to evaluate Harlow's contributions to medicine and to the medical, political, and civic life of Cavendish, Woburn, and the Commonwealth of Massachusetts.

Misunderstanding John Stuart Mill on science: Paul Feyerabend`s bad influence

Feyerabend, 1975; Feyerabend, 1981 and Feyerabend, 1987 takes J. S. Mill’s On Liberty to support the proliferation of theories in science and to emphasize the fallibility of scientific knowledge. On Liberty, according to Feyerabend, contradicts and overthrows Mill’s major study of science, A System of Logic. Staley (1999) reads the 2 works of Mill as giving complementary accounts of science. The present author rejects these interpretations of Mill, arguing that A System of Logic and On Liberty are mutually compatible since On Liberty concerns the nature of non-scientific knowledge and the methods that Mill believes are appropriate to expanding and assessing that knowledge.

Western maps/Yanyuwa meaning: an interview with John Bradley

In July 2003 an important one-volume text, Forget about Flinders: A Yanyuwa atlas of the south west gulf of Carpentaria produced in a limited edition of 14 copies, returned to Yanyuwa country and to the families who collaborated with John Bradley and artist Nona Cameron on the project. Subsequently, a second edition of 20 copies has been released, mainly to institutions. It is the most comprehensive attempt yet to restore Yanyuwa names to country and to produce a multilayered, dynamic, history-rich, and bilingual representation of how country is known in this community, and how the central song cycle texts intersect with Yanyuwa tradition. What follows is a condensed and edited interview with Frances Devlin-Glass, in which John Bradley discusses the motivations, the hybridised methodologies employed, the innovations of this new genre, and the pedagogical ends served by this latest iteration of Yanyuwa song cycles.

From crystals to pixels: new technology in the documentary work of John Hughes

Film technology, in the broadest sense, embraces a vast array of knowledge, skills, tools, and systems. These include the codes and conventions of screen representation at the centre of much screen scholarship. The electro-mechanical tools of filmmaking are less often the focus of academic study than these codes and conventions, but they are central to them and to the daily work of artists and educators in the field of screen production. This paper traces the scope and significance of technical change, for independent film making, over the past four decades. Melbourne documentary filmmaker John Hughes provides a varied and expansive oeuvre through which to arrange an historical equipment list.