disciplinarian, offers _English instruction_ to boys and girls of fair age." No shadow of doubt is possible as to the perverse nature of this last advertisement. The same is true of the one that follows: "_Gentleman_ offers strict instruction to older boys. Replies to 'English,' c/o Office of this paper." An advertisement which appeared about four years ago in a Hamburg paper had a tragi-comic sequel. It ran as follows: "Difficult educational opportunity. Advertiser, residing in Hanover, with pretty daughter of twelve years, wishes to place her under strict discipline in the care of a widow with a daughter of similar age. Arrangements must be made to enable the advertiser herself to stay with the lady in Hamburg when visiting that town from time to time. In replying to the office of this paper, give a detailed account of the methods of punishment." A gentleman who suspected that this advertisement was issued by a sexual pervert, and was anxious about the future of the child, sent a reply in the simulated handwriting of a woman. The answer he received showed that the child was, in fact, being subjected to perverse maltreatment, and in order to rescue the girl, after consultation with some friends, he communicated the facts to the Public Prosecutor. However, that official refused to interfere at this time. Then the advertisement appeared once more, and this time the offender was arrested. The gentleman thereupon wrote to the Public Prosecutor, blaming him for not having taken action on the first occasion. The Public Prosecutor regarded this as libellous, and actually brought an action for libel against the philanthropic gentleman. Happily the Public Prosecutor lost his case; but none the less, in view of what happened, a good citizen may well hesitate in future to take similar action in the public interest, if, for some trifling excess of zeal, he is to render himself liable to an action for libel. As I said above, of late years, in Berlin at any rate, such advertisements appear less often; or those that do appear belong chiefly to the second group. Doubtless we owe this to the action of the authorities, and more especially to a paragraph of the _Lex Heinze_,[126] of whose existence but few persons are aware, and of which, as my own note-books show, certain sexual perverts have only become aware to their sorrow through a legal prosecution. I refer to the paragraph by which the issue of advertisements for an immoral purpose is declared to be a punishable offence. The newspapers have now become cautious about the insertion of advertisements whose immoral purpose is plainly perceptible. Moreover, the perverts themselves who used to issue such advertisements, having through the activity of the authorities learned the significance of the paragraph in question, no longer advertise in unmistakable terms. CHAPTER IX SEXUAL EDUCATION