weather conditions changed. Sometimes these waits were for a few hours, sometimes for a day or more; and when the persistent southwest prairie gales blew day and night, moving great clouds of sand with them, the boat remained a prisoner until they ceased or abated. [Pg 24] There was good reason for choosing that south bank, for the stronger winds almost invariably came from that direction during the navigation season, and the bank gave a pleasing protection. While lying moored, idleness in progress did not mean idleness all around, for the boilers ate up great quantities of wood, and in many cases the fuel yards were the growing trees and windfalls on the banks. Once the boat was moored the crew leaped ashore and became wood-choppers, filling the fuel boxes and stacking the remainder on shore for future use. In a pinch green cottonwood sometimes had to be used, but it could be burned only by adding pitch or resin. Nowhere on the river was a navigation mark, for nowhere was the channel permanent enough to allow one to be placed. It was primitive, pioneer navigation with a vengeance, requiring intelligent, sober, quickwitted and courageous men to handle the boats. On the Missouri the word "pilot" was a term of distinction.[Pg 25] [Pg 25] The river was high at this time of the year, caused less by the excessive rains and melting snows in the mountains, being a little early for them, than by the rains along the immediate valley; bottom lands were flooded, giving the stream a width remarkable in places and adding greatly to the amount of drift going down with the current. The afternoon waned and the wind died, the latter responsible for the pilot's good nature, and the shadows of evening grew longer and longer until they died, seeming to expand into a tenuity which automatically effaced them. But sundown was not mooring time, for the twilight along the river often lasted until nine o'clock, and not a minute was wasted. When St. Charles had been left astern Tom had led his companion up onto the hurricane deck and placed two chairs against the pilot house just forward of the texas, where the officers had their quarters. The water was now smooth, barring the myriads of whirling, boiling eddies, and from their elevated position they could see the configuration of the submerged bars. The afterglow in the sky turned the mud-colored water into a golden sheen, and the wind-distorted trees on the higher banks and ridges were weirdly silhouetted against the colored sky. Gone