The unfenced prairie billowed to the horizon a sea of green, diversified by the sky-blue waters of slough and lake, and decked with the hues of gorgeous flowers--the prairie rose, fragrant, tender, elusive, and fragile as the English primrose; the blood-red tiger-lily; the brown windflower with its corn-tassel; the heavy wax cups of the sedgy water-lily, growing where wild duck flackered unafraid.