Genealogical narrative and self-knowledge in Rousseau's Discourse on the Origin and the Foundations of Inequality among Men

SUMMARY

Why did Rousseau cast the substance of the Second Discourse in the form of a genealogy? In this essay the author attempts to work out the relation between the literary form (genealogical narrative, as the author calls it) of the Discourse's two main parts and the content. A key thesis of Rousseau's text concerns our lack of self-knowledge, indeed, our ignorance of our ignorance. The author argues that in a number of ways genealogical narrative is meant to respond to that lack. In the course of his discussion he comments on Rousseau's puzzling remarks in the Second Discourse about his expository method. Further, given the thesis that we lack self-knowledge, Rousseau owes us an account of his genesis as self-knowing genealogist. He attempts to do so in part through his narrative of the ‘illumination of Vincennes’. The author examines that narrative as well, reading it and the Discourse in light of each other. Can Rousseau resolve the problems of self-reference that the philosophical use of genealogy often leads to? The article discusses this complex metaphilosophical problem, along with views about the value of genealogical accounts, in light of recent work by Robert Guay, John Kekes, Alasdair MacIntyre, and Frederick Neuhouser, among others.     

The future role of GIS education in creating critical spatial thinkers

Teaching of critical spatial thinking in higher education empowers graduates to effectively engage with spatial data. Geographic information systems (GIS) and science are taught to undergraduates across many disciplines; we evaluate how this contributes to critical spatial thinking. The discipline of GIS covers the whole process of spatial decision-making, but GIS modules often ignore the context setting of spatial problems, and just cover the technical aspects of how to use GIS software. We outline how some existing GIS practicals could be improved to focus on the development of critical spatial thinking skills, competences and abilities that are valuable to graduates.     

Radiocarbon Chronometry of Site QJ-280, Quebrada Jaguay,a Terminal Pleistocene to Early Holocene Fishing Site in Southern Peru

Excavations in 1970, 1996, and 1999 at Site QJ-280, Quebrada Jaguay, in southern Peru, yielded enough dateable terrestrial plant material to establish an extensive radiocarbon chronology for the site. QJ-280 is one of oldest well-dated fishing sites in the Americas: it was occupied from the terminal Pleistocene to the mid-Holocene (about 13,000–8,300 calibrated years BP) based on 42 terrestrial radiocarbon dates, encompassing the Jaguay and Machas Phases of the local archaeological sequence. In addition to the terrestrial dates, radiocarbon measurements on valves of two marine surf clam (Mesodesma donacium) individuals from a single, well-dated mid-Holocene Manos Phase archaeological context have provided insight into marine upwelling conditions during the occupation of Quebrada Jaguay. The marine reservoir age varied between 130 and 730 ¹⁴C years during the brief lives of the two clams (up to 5 years each), and varied by up to 530 ¹⁴C years within an individual valve, suggesting strong and variable deep marine upwelling; conditions broadly similar to those that exist in coastal Peru today. These rapid variations in marine radiocarbon age suggest that marine radiocarbon dates from environments with variable upwelling could be skewed by up to hundreds of years.