From a sun-warmed pool not fifty yards away a full chorus of the rapidly vibrant voices arises, and you imagine that the performers are so absorbed with their music that you may easily draw near and observe them. But when you come to the edge of the pool you see only a half-dozen concentric circles of wavelets, widening from central points, where as many musicians have modestly withdrawn beneath the transparent curtain. Wait, silent and motionless, and they will reappear. A brown head is thrust above the surface, and presently your last summer's familiar of the garden and doorstep crawls slowly out upon a barren islet of cobble-stone, and, assured that no intruder is within the precincts sacred to the wooing of the toads, she inflates her throat and tunes up her long, monotonous chant. Ere it ceases, another and another take it up, and from distant pools you hear it answered, till all the air is softly shaken as if with the clear chiming of a hundred swift-struck, tiny bells. They ring in the returning birds, robin, sparrow, finch and meadow lark, and the first flowers, squirrelcup, arbutus, bloodroot, adder-tongue and moose-flower. When the bobolink has come to his northern domain again and the oriole flashes through the budding elms and the first columbine droops over the gray ledges, you may still hear an occasional ringing of the toads, but a little later the dignified and matronly female, having lost her voice altogether, has returned to her summer home, while her little mate has exchanged his trill for a disagreeable and uncanny squawk, perhaps a challenge to his rivals, who linger about the scenes of their courtship and make night hideous until midsummer. Then a long silence falls on the race of toads--a silence which even hibernation scarcely deepens. XII MAY DAYS The lifeless dun of the close-cropped southward slopes and the tawny tangles of the swales are kindling to living green with the blaze of the sun and the moist tinder of the brook's overflow. The faithful swallows have returned, though the faithless season delays. The flicker flashes his golden shafts in the sunlight and gladdens the ear with his merry cackle. The upland plover wails his greeting to the tussocked pastures, where day and night rings the shrill chorus of the hylas and the trill of the toads continually trembles in the soft air. The first comers of the birds are already mated and nest-building, robin and song sparrow each in his chosen place setting the foundations of his house with mud or threads of dry grass. The crow clutters out his softest love note. The flicker is mining a fortress in the heart of an old apple-tree. The squirrels wind a swift ruddy chain about a boll in their love chase, and even now you may surprise the vixen fox watching the first gambols of her tawny cubs by the sunny border of the woods.