GUTENBERG'S INKS AND PAPERS: NON-DESTRUCTIVE COMPOSITIONAL ANALYSES BY PROTON MILLIPROBE

Particle induced X-ray emission (PIXE) has been used in analysis of ink and paper of the 42-line Bible and other early printed works. Results are reported and their significance discussed.     

Net migration estimation in an extended,multiregional gravity model

A multi-regional framework is developed in order to analyze net migration over time to all 10 Canadian provinces within an integrated system of equations. "An extended gravity model is the basis for the equation specification and the use of constrained econometric estimation techniques allows for the provincial interdependence of the migration decision while at the same time ensuring that an important system-wide requirement is respected." The model is estimated using official Canadian data for the 1960s and 1970s. "The results suggest the predominance of the push factor for interprovincial migration for most provinces, although net migration to the Atlantic provinces is also shown to be subject to pull forces from the rest of the country." The effects of wage rate variables, unemployment, and political disturbances in Quebec on inter-provincial migration are noted.     

The regional consequences of a dualistic industrial structure: the case of Australia

This article is a preliminary attempt to consider the spatial consequences of business organisation segmentation in the Australian economy. The first section outlines a framework that can be employed in an analysis of business organisation segmentation. The second section applies this framework in the context of the Australian economy. This section is in three parts. First, it is shown that conventional sectoral data can be used to approximate business organisation segmentation. Second, the labour market consequences of this empirical exercise are documented. Finally, the spatial consequences of the exercise are shown by way of a series of maps.     

MAYAN OBSIDIAN: SOURCE CORRELATION FOR SOUTHERN BELIZE ARTIFACTS

High-precision neutron activation measurements have been made on mesoamerican obsidian from Ixtepeque and El Chayal which are thought to be the major sources of volcanic glass artifacts in pre-Columbian times. These results are compared with measurements on obsidian artifacts from Lubaantun, Wild Cane Cay, Frenchman's Cay and Moho Cay.