Different Preparation Techniques – Similar Results? On the Quality of Thin‐Ground Sections of Archaeological Bone

Palaeohistology as a valuable diagnostic instrument is dependent on the production of high‐quality thin‐ground sections from dry bone. The objective of this study was to consider technical differences and assess the qualitative outcomes of five techniques for preparing thin‐ground sections from dry archaeological bone. Established techniques with long follow‐up times and excellently documented results were compared with simpler and cheaper time‐saving techniques. Evaluations were made of the quality of thin sections obtained by one classical machine‐based embedding technique, two revised versions of the same technique, one manual moulding technique based on Frost's rapid technique and one manual hybrid technique. Five osteological specimens of differing quality were prepared following the manuals for these five techniques and examined microscopically with respect to a list of standardised histological and diagenetic parameters. Alterations in the specimens attributable to preparation effects were recorded, and observations were scored with reference to three criteria: section quality, technical quality and staining. The results show that embedding techniques are to prefer. Superglue should not be used as a mounting or embedding medium. Manual grinding comes with several limitations, and machine cutting and grinding are preferred. Haematoxylin staining can be successfully applied to embedded specimens, giving more information on microscopic diagenetic processes. A stepwise manual for a revision of the classical embedding technique is presented. The time required for producing sections using classical embedding techniques is shortened from 6 weeks to 3.7 days by refining the preparation/polymerization processes involved with no loss of osteological data. Copyright © 2014 John Wiley & Sons, Ltd.     

Diet,Mobility, Technology,and Lithics: Neolithization on the Andean Altiplano, 7.0–3.5 ka

Journal of Archaeological Method and Theory - Neolithization was a complex, protracted process of domestication, sedentarization, and technology change that occurred in various combinations in...     

High altitude adaptation

Paul T. Baker, ed. The Biology of High Altitude Peoples. International Biological Programme II. New York: Cambridge University Press, 1978. xii ‐ 357. $39.50     

Der erste Europäische Straßenatlas

ABSTRACT

Imitations of famous Dutch wall maps originally produced in Amsterdam by F. de Wit and W. J. Blaeu have recently been rediscovered in Italy. In Bologna, in the archive of Opera Pia dei Poveri Vergognosi, is a set of Blaeu's four wall maps of the continents, engraved on new plates by Pietro Todeschi and published by Giuseppe Longhi. The value of the discovery lies in the completeness of the exemplars, which also bear the publisher's imprint and date of publication, hitherto unknown: Europe 1677; Africa 1678; Asia 1679; America 1679/1680(?). An undated version of de Wit's world wall map, also published by Longhi, has come to light in the same archive. A copy of the same map, this time published by Giovanni Giacomo de' Rossi in Rome in 1675, was then found in Modena in the Seminario Metropolitano. Comparison of the two copies has provided a date for Longhi's undated issue; Longhi's map came after de' Rossi's, that is after 1675.     

AROUND 1968 – DANISH HISTORIOGRAPHY

This article is divided into three parts. The first part outlines the cultural and political leftist revolt of the 1960s and 1970s in Denmark by presenting the different periodizations linked to various aspects of the revolt and by introducing a variety of perceptions of its causes, course and impact. In the next section, apart from pointing out some of the important lacunae, I provide an overview of the genres and topics that characterise the historiography. Studies of social movements and political parties, for example, are heavily overrepresented. In the third and concluding part, I propose that the thematic and methodological distinction in the historiography between the cultural and political aspects of the revolt should be blurred and deconstructed.     

International Institutions and Social Learning in the Management of Global Environmental Risks

This article investigates the role played by formal international institutions in the broader process of international efforts to respond to and manage global and transboundary environmental risks. Because few international institutions are designed to deal with the broad nature of environmental risks, it focuses on institutional learning. By analyzing the experiences of the United Nations Environment Program, World Meteorological Organization, and other international institutions involved with global warming, this article identifies institutional properties (or functions) that encourage or inhibit social learning in the management of global environmental risks by international institutions, and that influence the adoption of such lessons by their constituent members.