Tarmac Group centenary in 1953, Tarmac was processing over two million tons of slag a year, its road surfacing had developed into a significant civil engineering business, and its Vinculum subsidiary "had become one of the major precast concrete undertakings in the country." Under Robin Martin's leadership, Tarmac moved from being an important regional force to a national roadstone and contracting business. Acquisitions played a major role in Tarmac's growth. While leading the roadstone division, Martin had been responsible in 1959 for the acquisition of local competitor Tarslag and Crow Catchpole, which gave it a greater presence in the south east. In
Material culture of the Manasir Material culture of the Manasir The material culture of the Manasir is very basic and primarily relies on the by-products of palm tree cultivation (cf. Date cultivation in Dar al-Manasir). Date trees not only constitute the main source of income and an important supply of nutrition in Dar al-Manasir, but the Manasir also make intelligent use of all different parts of the palm tree. From it they produce diverse household items, garden tools and building material for their traditional mud houses. (cf. Architecture in Dar al-Manasir). What follows is a list of raw materials gathered from the date palm and