The curtains of your apartments ought to be of a stuff which is quite transparent, and you ought to contract the habit in the evenings of walking outside so that madame may see you come right up to the window just out of absent-mindedness. In a word, with regard to windows, let the sills be so narrow that even a sack of flour cannot be set up on them. If the apartment of your wife can be arranged on these principles, you will be in perfect safety, even if there are niches enough there to contain all the saints of Paradise. You will be able, every evening, with the assistance of your porter, to strike the balance between the entrances and exits of visitors; and, in order to obtain accurate results, there is nothing to prevent your teaching him to keep a book of visitors, in double entry. If you have a garden, cultivate a taste for dogs, and always keep at large one of these incorruptible guardians under your windows; you will thus gain the respect of the Minotaur, especially if you accustom your four-footed friend to take nothing substantial excepting from the hand of your porter, so that hard-hearted celibates may not succeed in poisoning him. But all these precautions must be taken as a natural thing so that they may not arouse suspicions. If husbands are so imprudent as to neglect precautions from the moment they are married, they ought at once to sell their house and buy another one, or, under the pretext of repairs, alter their present house in the way prescribed. You will without scruple banish from your apartment all sofas, ottomans, lounges, sedan chairs and the like. In the first place, this is the kind of furniture that adorns the homes of grocers, where they are universally found, as they are in those of barbers; but they are essentially the furniture of perdition; I can never see them without alarm. It has always seemed to me that there the devil himself is lurking with his horns and cloven foot. After all, nothing is so dangerous as a chair, and it is extremely unfortunate that women cannot be shut up within the four walls of a bare room! What husband is there, who on sitting down on a rickety chair is not always forced to believe that this chair has received some of the lessons taught by the _Sofa_ of Crebillion junior? But happily we have arranged your apartment on such a system of prevention that nothing so fatal can happen, or, at any rate, not without your contributory negligence. One fault which you must contract, and which you must never correct, will consist in a sort of heedless curiosity, which will make you examine unceasingly all the boxes, and turn upside down the contents of all dressing-cases and work-baskets. You must proceed to this domiciliary visit in a humorous mood, and gracefully, so that each time you will obtain pardon by exciting the amusement of your wife.