The U.S. dollar was mixed against other major currencies in European trading Tuesday morning. Gold fell. The euro traded at US$1.5771, down from US$1.5775 late Monday in New York. Other dollar rates: _105.37 Japanese yen, down from 106.26 _1.0178 Swiss francs, down from 1.0194 _1.0168 Canadian dollars, up from 1.0108 The British pound was quoted at US$1.9974, up from $1.9930. Gold traded in London at US$929.50 per troy ounce, down from US$932.75 late Monday.