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The railway track system is the platform by which loads from moving trains are transferred to the underlying soil or supporting infrastructure such as bridges. The most common type of railway track system is ballasted track, which has been in use for over a century. Ballasted track has proved versatile. It can be constructed using locally available materials and with modifications to the rails and sleepers, crossings transferring trains from one route to another can be created. The structure of a ballasted track system consists of two main parts. The upper portion, termed the superstructure, comprises the rails, fastenings and sleepers. It is formed of components whose shape, stiffness and strength are designed and closely controlled. Below the superstructure is the substructure, which comprises the ballast and sub-ballast. Although the materials used in the substructure may have been specified, their engineering properties and geometric placement are less well controlled. In this chapter, we will explore how a typical ballasted track system transfers load to the ground and the ways in which the track form deteriorates, requiring maintenance and eventually renewal.

South African higher education is beset by the following problems: inequality in access to and survival in higher education, aligning education and work, and the problem of the university appearing as a Western institution, isolated from the exigencies and realities of society. One institution that does have an international track record in successfully addressing these issues is the Community College. This chapter reconstructs that track record, and juxtaposes it next to an analysis of South African higher education and the South African context, and in conclusion assesses the promise of inserting the Community College model into the South African higher education landscape.

In November 2001, Scott Carlson, in the Chronicle of Higher Education wrote an article on library use titled “The deserted library: As students work online, reading rooms empty out—leading some campuses to add Starbucks” (Carlson, 2001). The essence of this chapter is that many librarians, facing dramatic declines in library gate counts resulting from the wealth of electronic resources accessible remotely, were beginning to move away from traditional conceptions of the library as primarily a repository for print collections. Carlson describes the “tough sell” that the Georgia College and State University in Milledgeville had experienced when planning a $19.5 million library addition in the mid-1990s. In response librarians had begun “fighting back” with “plush chairs, double-mocha lattes, book groups, author readings.” Still, no one knew whether these stratagems would enhance learning or bring its readers back.

The history of economics has often been described as the “history of economic thought.” In this essay, I explore an alternative perspective that builds on the French tradition of historical epistemology and treats economics as a social practice. I argue that a practice-based view provides a more philosophically robust conception of historiography and a richer field of investigation for historians of economics.