A history of technology : edited by Charles Singer and others v. 1. From early times to fall of ancient empires / Singer, Charles 1876-1960, ed. Williams, Trevor Illtyd. Technology History. Civilization History. T15 .S53 609 SIH Volumes 6-7 ed. by T. I. Williams. Includes bibliographies. Oxford : Clarendon Press, 1954. 1954. 1954 Text 8 v. : eng