Complex sentence: The price of gold from the treasury for international transactions was thereafter raised to $35 an ounce; this had no lasting effect on the value of the dollar, which thenceforth was determined by its value relative to other national currencies.
Split into simpler sentences: The price of gold from the treasury for international transactions was thereafter raised to $35 an ounce. The value of the dollar was thenceforth determined by its value relative to other national currencies.