Arrived at this point the visitor sees the garden stretching out at his feet. It is in the spring that the full beauty of flower and foliage reveals itself. On Sundays and fête days, when the weather is fine, the garden teems with people. Masses of promenaders come to find, beneath the shade of the avenues, verdure and fresh air; for not only is the Jardin des Plantes a great scientific school, it is the joy and the life of a populous quarter of the metropolis. It affords repose to fatigued workmen, the families of local residences resort to it, and generations of lighthearted children grow up in the midst of its charms. [Illustration: MARABOUT STORKS IN THE JARDIN DES PLANTES.] Descending the labyrinth, behind the hot-houses, the visitor finds in front of him the door of the orangery, and to the left the entrance to the grand amphitheatre, where so many illustrious voices have instructed the world. Then, following the avenue which passes before the amphitheatre, he descends the length of the Rue Cuvier, and making on this side the tour of the menagerie, an enormous grampus, together with its skeleton, comes into view, guarding the entrance to the galleries of anatomy and anthropology. Farther on is the reptile menagerie, as well as a school of fruit trees, which French writers on the subject characteristically declare to be “without a rival in the world.” At the angle formed by the Rue Cuvier and the quay, and following the latter, one comes to the aquarium of fresh-water plants. Willows hang their branches over the water, full of plants and sleepy fishes. All is shade, freshness, and tranquillity in this nook, which is the most picturesque and charming in the whole garden. We have now returned to the principal entrance, facing the bridge of Austerlitz. In the immense flower-beds which ascend to the galleries, what chiefly strikes the eye is a square devoted to the cultivation of gaily ornamental flowers, where they seem to have more than their accustomed splendour. This particular effect is produced simply by means of skilful arrangement, based on those laws relating to the simultaneous contrast of colours which it was reserved for M. Chevreuil to discover. Each flower owes more to its neighbour than to itself. Isolated, it would lose that brilliant beauty which is lent to it by a clever juxtaposition. [Illustration: THE POLAR BEAR IN THE JARDIN DES PLANTES.]