ahead under the thrust of the perfectly timed oars. "Mackinaw boat," said Tom, "and in a hurry. There's the express. There is a belief on the river that the square stern of those boats gives them a speed in rapids greater than that of the current. They are very safe and handy for this kind of navigation, and well built by skilled[Pg 54] artisans at the boat yards of the principal trading posts up the river. They are a great advance over the bullboat, which preceded them." [Pg 54] "And which are still in use, makeshifts though they are," said Captain Newell as he stopped beside them. "But you can't beat the bullboat for the purpose for which it was first made; that of navigating the shallower streams. I thought you would be glad to know that we expect to be under way again early in the morning. But, speaking of bullboats, did you ever see one, Miss Cooper?" "I've had them pointed out to me at St. Louis, but at a distance," she answered. "Somehow they did not impress me enough to cause me to remember what they looked like." "Why, I'll show you some," offered Tom eagerly. "There's half a dozen on the main deck." Uncle Joe squirmed as he glanced around, and arose to leave for the card room, but the captain smiled and nodded. "Yes, that's so, Mr. Boyd. Take a look at them when the rain lets up. We're always glad to carry a few of them back up the river, for we find them very handy in lightering cargo in case we have mean shallows that can be crossed in no other way. You'd be surprised how little water this boat draws after its cargo is taken ashore." "But why do they call them bullboats?" asked Patience. "They're named after the hides of the bull buffalo, which are used for the covering," explained the captain. "First a bundle of rather heavy willow poles are fash[Pg 55]ioned into a bottom and bound together with rawhide. To this other and more slender willow poles are fastened by their smaller ends and curved up and out to make the ribs. Then two heavy poles are bent on each side from stem to stern and lashed to the ends of the ribs, forming the gunwale. Everything is lashed with rawhide and not a bolt or screw or nail is used. Hides of buffalo bulls, usually prepared by the Indians, although the hunters and trappers can do the work as well, are sewn together with sinew after being well soaked. They are stretched tightly over the frame and