31.  Although promising more co-operation with Europe, he has also promised a referendum if the government decides the U.K. should join the European single currency.

32.  Also, German bonds have gained amid concern that plans for a single European currency will fail.

33.  Also weighing on the mark were comments from the Franco-German summit in Laval, France yesterday underscoring plans to form a single European currency, the euro.

34.  Also, some trade between European currencies occurs through the dollar, meaning traders sell other European currencies for dollars, then sell those dollars for deutsche marks.

35.  Also, some trades between European currencies are done through the dollar, meaning traders sell marks for dollars, then sell those dollars for other currencies.

36.  Also, traders sometimes execute trades between European currencies through the dollar.

37.  Among European currencies, the British pound and the French franc rose against the mark.

38.  Analysts also expect Bundesbank rate policy to support efforts toward a European common currency by providing an anchor for interest rates in neighboring European Union countries.

39.  Analysts say there are reasons to believe that the dollar could go even higher against European currencies in the weeks and months ahead.

40.  And because the dollar, while volatile, has not changed much in value against European currencies, Americans who invested in Europe have done well so far.