The McMahon Line: A Study in the Relations between India, China and Tibet, 1904 to 1914. Volume I, Morley, Minto and Non-Interference in Tibet; Volume II, Hardinge, McMahon and the Simla Conference. By Alastair Lamb. [Studies in Political History.] (Toronto: University of Toronto Press. 1966. Pp. xi, 267, xx; vii, 271–656, xx. $17.50 the set.)