Date. 15th December : — 1934 1985 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 £951 1952 1953 1954 1955 1956 (957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1978 1974 1975 1976 1977 1978 1979 980 1981 1982 1©83 1984. Annual instalments te be paid on account of principal. $ 32,000 32,000 32,000 37,000 37,000 37,000 42,000 42,000 42,000 12,000 46,000 46,000 46,000 51,000 51,000 51,000 53,000 55,000 57,000 60,000 64,000 54,000 64,000 67,000 70,000 72,000 74,000 78,000 78,000 83,000 85,000 89,000 94,000 96,000 100,000 105,000 110,000 114,000 119,000 123,000 127,000 132,000 136,000 141,000 146,000 151,000 156,000 162,000 167,000 175,000 175.000 Provided, however, that Great Britain may, at its option, upon not less than ninety days’ advance notice, postpone any payment of principal falling due as hereinabove provided to any subsequent 15th June or 15th December, not more than two years distant from ite due date, but only on condition that if Great Britain shall at any time exercise this option as to any payment of principal, the payment falling due in the next succeeding vear cannot be postponed to any date more