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parative safety By certain side-glances and general knowledge of the river, which we may compare to the warnings of experience and the reasonings of analogy, he obtains an inkling, far removed from certainty, of much approaching trouble to which his back is turned. By observing the track of his own boat rippling the surface many a yard astern, he learns to guide his course, just as he would correct his conduct by the lessons of the past. Now the stream runs hard against him, and he must work his way foot by foot with honest, unremitting toil. Now he shoots along through slack water, much to his own content and self-approval, but under no circumstances, however formidable, must he completely relax his efforts, for the current would soon float him back to the place from whence he came. Many a scene of beauty, many a lovely nook, and sunny lawn, and fairy palace glides by him as he