A jungle moon first showed me my beach. For a week I had looked at it in blazing sunlight, walked across it, even sat on it in the intervals of getting wonted to the new laboratory; yet I had not perceived it. Colonel Roosevelt once said to me that he would rather perceive things from the point of view of a field-mouse, than be a human being and merely see them. And in my case it was when I could no longer see the beach that I began to discern its significance. This British Guiana beach, just in front of my Kartabo bungalow, was remarkably diversified, and in a few steps, or strokes of a paddle, I could pass from clean sand to mangroves and muckamucka swamp, thence to out-jutting rocks, and on to the Edge of the World, all within a distance of a hundred yards. For a time my beach walks resulted in inarticulate reaction. After months in the blindfolded canyons of New York's streets, a hemicircle of horizon, a hemisphere of sky, and a vast expanse of open water lent itself neither to calm appraisal nor to impromptu cuff-notes. It was recalled to my mind that the miracle of sunrise occurred every morning, and was not a rather belated alternation of illumination, following the quenching of Broadway's lights. And the moon I found was as dependable as when I timed my Himalayan expeditions by her shadowings. To these phenomena I soon became re-accustomed, and could watch a bird or outwit an insect in the face of a foreglow and silent burst of flame that shamed all the barrages ever laid down. But cosmic happenings kept drawing my attention and paralyzing my activities for long afterward. With a double rainbow and four storms in action at once; or a wall of rain like sawn steel slowly drawing up one river while the Mazaruni remains in full sunlight; with Pegasus galloping toward the zenith at midnight and the Pleiades just clearing the Penal Settlement, I could not always keep on dissecting, or recording, or verifying the erroneousness of one of my recently formed theories. There was Thuban, gazing steadily upon my little mahogany bungalow, as, six millenniums ago, he had shone unfalteringly down the little stone tube that led his rays into the Queen's Chamber, in the very heart of great Cheops. Just clearing a low palm was the present North Star, while, high above, Vega shone, patiently waiting to take her place half a million years hence. When beginning her nightly climb, Vega drew a thin, trembling thread of argent over the still water, just as in other years she had laid for me a slender silver strand of wire across frozen snow, and on one memorable night traced the ghost of a reflection over damp sand near the Nile--pale as the wraiths of the early Pharaohs.