Processors and users of plastics often need to determine the chemical nature of a plastics specimen. The highly practical and useful manual will enable you to determine the class of plastics of the specism. No extensive knowledge of chemistry is required and yet is a handy and highly effective tool for many practical situations.

Originally published in German in an edition edited by Dietrich Braun, Karl Barth's Ethics is at last available in English. This volume, containing lectures given as courses at the University at Munster in 1928 and 1929, represents Barth's first systematic attempt at a theological account of Christian ethics. Although composed over fifty years ago, just prior to Barth's thirty-year devotion to Church Dogmatics, many of its themes, problems, and conclusions are astonishingly relevant today (his critique of competitiveness and of technology, for example). While this work is concerned with the...