"Still Nature's births enclosed in egg or seed From the tall forest to the lowly weed, Her beaux and beauties, butterflies and worms, Rise from aquatic to aerial forms. Thus in the womb the nascent infant laves Its natant form in the circumfluent waves; 390 With perforated heart unbreathing swims, Awakes and stretches all its recent limbs; With gills placental seeks the arterial flood, And drinks pure ether from its Mother's blood. Erewhile the landed Stranger bursts his way, From the warm wave emerging into day; Feels the chill blast, and piercing light, and tries His tender lungs, and rolls his dazzled eyes; Gives to the passing gale his curling hair, And steps a dry inhabitant of air. 400 [Footnote: _Awakes and stretches_, l. 392. During the first six months of gestation, the embryon probably sleeps, as it seems to have no use for voluntary power; it then seems to awake, and to stretch its limbs, and change its posture in some degree, which is termed quickening.] [Footnote: _With gills placental_, l. 393. The placenta adheres to any side of the uterus in natural gestation, or of any other cavity in extra-uterine gestation; the extremities of its arteries and veins probably permeate the arteries of the mother, and absorb from thence through their fine coats the oxygen of the mother's blood; hence when the placenta is withdrawn, the side of the uterus, where it adhered, bleeds; but not the extremities of its own vessels.] [Footnote: _His dazzled eyes_, l. 398. Though the membrana pupillaris described by modern anatomists guards the tender retina from too much light; the young infant nevertheless seems to feel the presence of it by its frequently moving its eyes, before it can distinguish common objects.] "Creative Nile, as taught in ancient song, So charm'd to life his animated throng; O'er his wide realms the slow-subsiding flood Left the rich treasures of organic mud; While with quick growth young Vegetation yields Her blushing orchards, and her waving fields; Pomona's hand replenish'd Plenty's horn, And Ceres laugh'd amid her seas of corn.-- Bird, beast, and reptile, spring from sudden birth, Raise their new forms, half-animal, half-earth; 410 The roaring lion shakes his tawny mane, His struggling limbs still rooted in the plain; With flapping wings assurgent eagles toil To rend their talons from the adhesive soil; The impatient serpent lifts his crested head, And drags his train unfinish'd from the bed.-- As Warmth and Moisture blend their magic spells, And brood with mingling wings the slimy dells; Contractile earths in sentient forms arrange, And Life triumphant stays their chemic change." 420