Thus Boxtel soon was no longer content with seeing Van Baerle.

He wanted to see his flowers, too; he had the feelings of an artist, the master-piece of a rival engrossed his interest.
He therefore bought a telescope, which enabled him to watch as accurately as did the owner himself every progressive development of the flower, from the moment when, in the first year, its pale seed-leaf begins to peep from the ground, to that glorious one, when, after five years, its petals at last reveal the hidden treasures of its chalice.
How often had the miserable, jealous man to observe in Van Baerle's beds tulips which dazzled him by their beauty, and almost choked him by their perfection! And then, after the first blush of the admiration which he could not help feeling, he began to be tortured by the pangs of envy, by that slow fever which creeps over the heart and changes it into a nest of vipers, each devouring the other and ever born anew.

How often did Boxtel, in the midst of tortures which no pen is able fully to describe,--how often did he feel an inclination to jump down into the garden during the night, to destroy the plants, to tear the bulbs with his teeth, and to sacrifice to his wrath the owner himself, if he should venture to stand up for the defence of his tulips! But to kill a tulip was a horrible crime in the eyes of a genuine tulip-fancier; as to killing a man, it would not have mattered so very much.
Yet Van Baerle made such progress in the noble science of growing tulips, which he seemed to master with the true instinct of genius, that Boxtel at last was maddened to such a degree as to think of throwing stones and sticks into the flower-stands of his neighbour.

But, remembering that he would be sure to be found out, and that he would not only be punished by law, but also dishonoured for ever in the face of all the tulip-growers of Europe, he had recourse to stratagem, and, to gratify his hatred, tried to devise a plan by means of which he might gain his ends without being compromised himself.
He considered a long time, and at last his meditations were crowned with success.
One evening he tied two cats together by their hind legs with a string about six feet in length, and threw them from the wall into the midst of that noble, that princely, that royal bed, which contained not only the "Cornelius de Witt," but also the "Beauty of Brabant," milk-white, edged with purple and pink, the "Marble of Rotterdam," colour of flax, blossoms feathered red and flesh colour, the "Wonder of Haarlem," the "Colombin obscur," and the "Columbin clair terni." The frightened cats, having alighted on the ground, first tried to fly each in a different direction, until the string by which they were tied together was tightly stretched across the bed; then, however, feeling that they were not able to get off, they began to pull to and fro, and to wheel about with hideous caterwaulings, mowing down with their string the flowers among which they were struggling, until, after a furious strife of about a quarter of an hour, the string broke and the combatants vanished.
Boxtel, hidden behind his sycamore, could not see anything, as it was pitch-dark; but the piercing cries of the cats told the whole tale, and his heart overflowing with gall now throbbed with triumphant joy.
Boxtel was so eager to ascertain the extent of the injury, that he remained at his post until morning to feast his eyes on the sad state in which the two cats had left the flower-beds of his neighbour.

The mists of the morning chilled his frame, but he did not feel the cold, the hope of revenge keeping his blood at fever heat.