D. R. SARDESAI. British Trade and Expansion in Southeast Asia, 1830-1914. New Delhi: Allied Publishers Private. 1977. Pp. viii, 302. Rs. 60 and NICHOLAS TARLING. Sulu and Sabah: A Study of British Policy towards the Philippines and North Borneo from the Late Eighteenth Century. New York: Oxford University Press. 1978. Pp. 385. $39.00