NOTEBOOK Those little books led the long procession that would follow. He had engaged himself to learn piloting—to familiarize himself with twelve hundred miles of the Mississippi River, "cub" of the great Horace Bixby. In Life on the Mississippi he writes: "I entered upon the small enter- prise of learning 12 or 13 hundred miles of the great Mississippi River with the easy confidence of my time of life. If I had really known what I was about to require of my faculties I should not have had the courage to begin. I supposed that all a pilot had to do was to keep his boat in the river and I did not consider that that could be much of a trick, since it was so wide." A day or two later the easy confidence was all gone. Bixby, asking him to repeat some of the instruction we had furnished him, found that he could remember none of it. His head was a mere jumble of "points" and "bends" and "bars" and "crossings." "My boy," said Mr. Bixby, "you must get a little memorandum-book and every time I tell you a thing, put it down, right away. There's only one way to be a pilot and that is to get this entire river by heart. You have to know it just like A B C." He probably bought the little memorandum-book at the next landing-place where such things were to be had —at Cairo, most likely, for there his first entry appears to have been made. He began with great diligence and en- thusiasm. The first three or four pages are crowded with confused entries, microscopic lead-pencil abbreviations, today all but illegible. Later his enthusiasm waned, or he recognized the futility of such a confusion. He systema- tized his entries under blue pencil headings, and wrote more legibly: Delta to head 62 [small pencil sketch of steamboat with the word "Bar," and picture of same]. Coming up, when all the Bar is covered there is J4 less 2 in chute of