FRENCH EXPLORERS. - LE SUEUR ON THE ST. PETER'S. - CANADIANS ON THE MISSOURI. - JUCHEREAU DE SAINT-DENIS. - BENARD DE LA HARPE ON RED RIVER. - ADVENTURES OF DU TISNE. - BOURGMONT VISITS THE COMANCHES. - THE BROTHERS MALLET IN COLORADO AND NEW MEXICO. - FABRY DE LA BRUYERE.