CHAPTER Till. PEKPLEXING LESSONS. AT the end of what seemed a tedious while, I had managed to pack my head full of islands, towns, bars, * points/ and bends j and a curiously inanimate mass of lumber it was, too. However, inasmuch as I could shut my eyes and reel off a good long string of these names without leaving out more than ten miles of river in every fifty, I began to feel that I could take a boat down to New Orleans if J could make her skip those little gaps. But of course my complacency could hardly get start enough to lift my nose a trifle into the air, before Mr, Bixby would think of something to fetch it down again. One day he turned on me suddenly with this settler— 6 What is the shape of Walnut Bend ?' He might as well have asked me my grandmother's opinion of protoplasm. I reflected respectfully, and then said I didn't know it had any particular shape. My gunpowdery chief went off with & bang, of course, and then went on loading and firing until he was out of adjectives. I had learned long ago that he only carried just so many rounds of ammunition, and was sure to subside into a very placable and even remorseful old smooth-bore as soon as they were all gone. That word * old' is merely affectionate; he was not more than thirty-four. I waited. By and by he said— * My boy, you've got to know the sfiape of the river perfectly. It Is all there is left to steer by on a very dark night. Everything else is blotted out and gone. But mind you, it hasn't the same shaDe in the night that it has in the day-time/ ' How on earth am I ever going to learn it, then ?'