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REFLEXIONS IN SMOOTH WATER 23 not see directly), would appear to him at £; and so on for any other point in the bow adc. | Lhus we see that the reflexion consists of a smaller arc than the actual rainbow, tts extremities springing, not from the ends of the rainbow proper, but from points inside them. Of course, if E were at a very small height above the water, and the rain causing the bow at a great distance from E, the break between the ends of the sky bow and those of the
