"24. In order that no one who, whether as keeper or girl, makes a trade of prostitution, shall be in a position to excuse themselves on account of their ignorance of this code of regulations, a copy of them shall be given to every person at the time of registration, for which six groschen shall be paid, and carried to the reward fund for informers." The royal rescript, the statute, and the police ordinance of 1792 are founded upon the principle that prostitution is a necessary evil, which, if unregulated, tends to demoralize all society, and inflict physical suffering on its votaries; but, as it can never be suppressed, it is tolerated in order that those who practice it may be brought under supervision and control. In furtherance of this idea, another police order was promulgated in 1795, prohibiting music and dancing at the tolerated houses, and limiting the resort of prostitutes to public places of amusement. The immediate effect of this measure was to close several coffee-houses served by women (_mädchen tabagieen_). At the same time, the women were classified into first, second, and third classes, and the monthly tax graduated to one thaler (sixty-eight cents), two thirds of a thaler, and one third of a thaler, which was appropriated to the healing fund, as directed by the regulations of 1792. This impost was doubled at a subsequent period in consequence of public calamities. To enforce the police directions and collect the tax, a census of the public prostitutes in Berlin was taken in June, 1792, when they amounted to 311. The toleration was withdrawn from some of these for various reasons, and the numbers were, in July 269 August 268 September 249 October (a period of fairs and other assemblages) 258 And the average finally settled at about 260 in a population of 150,000. In the exercise of the discretionary power vested in the police of Berlin, as in most other cities of Continental Europe, they found it necessary to extend their toleration so as to include in their supervision those private prostitutes who could not be permitted to reside in the tolerated houses because they had not reached the age prescribed by law, which in Prussia fixes majority at twenty-four years; and also another class who were secretly visited at private lodgings by those wealthy libertines whose pride would not allow them to enter a common brothel, and whose _amours_ consequently exposed them to liabilities which the spirit of the law justified the police in encountering. The persons (mostly widows) with whom the private prostitutes resided were made answerable to the police, and subjected to the same rules as the tolerated houses. Under the new scale of impost there were, in 1796,