A LINE in long array, where they wind betwixt green islands;
 They take a serpentine course--their arms flash in the sun--Hark to
 the musical clank;
 Behold the silvery river--in it the splashing horses, loitering, stop
 to drink;
 Behold the brown-faced men--each group, each person, a picture--the
 negligent rest on the saddles;
 Some emerge on the opposite bank--others are just entering the ford--
 while,
 Scarlet, and blue, and snowy white,
 The guidon flags flutter gaily in the wind.