As I sat on the high bank at the east end of Walden this afternoon at five o'clock, I saw by a peculiar intention of the eye, a very striking, sub-aqueous rainbow-like phenomenon. A passerby might have noticed the reflections of those bright-tinted shrubs along the high shore on the sunny side, but unless on the alert for such effects he would have failed to perceive the full beauty of the phenomenon. Those brilliant shrubs, from three to a dozen feet in height, were all reflected, dimly so far as the details of leaves, etc., were concerned, but brightly as to color, and of course in the order in which they stood, scarlet, yellow, green, etc.; but there being a slight ripple on the surface, these reflections were not true to the height of their substances, only as to color, breadth of base, and order, but were extended downward with mathematical perpendicularity three or four times too far for the height of the substances, forming sharp pyramids of the several colors gradually reduced to mere dusky points. The effect of this prolongation was a very agreeable softening and blending of the colors, especially when a small bush of one bright tint stood directly before another of a contrary and equally bright tint. It was just as if you were to brush firmly aside with your hand or a brush a fresh hue of paint or so many lumps of friable colored powders. There was accord-
