Whenever the usufruct includes things which, without being consumed, gradually deteriorate through wear and tear, the usufructuary shall have the right to make use thereof in accordance with the purpose for which they are intended, and shall not be obliged to return them at the termination of the usufruct except in their condition at that time; but he shall be obliged to indemnify the owner for any deterioration they may have suffered by reason of his fraud or negligence. (481)