(15) All intercourse with strangers appearing in the establishment, for whatever purpose, and with the military guard, is forbidden, as are also speaking, beckoning, etc., between male and female inmates. Strangers, as well as members of the municipal or other authority visiting the establishment, may only speak with inmates with the permission of the overseers present. (16) Visits to inmates may only be made by near relatives, and such persons as have to discuss business, and then only with the permission of the Director, and in the presence of an officer. Visitors must furnish proof of their identity and of their _bona-fide_ business with the inmates concerned. Conversation between the inmates may only take place in a language known to the attendant officer. Every abuse of the permission to visit an inmate will entail the immediate removal of the visitor and punishment of the inmate according to the circumstances of the case. (17) Every inmate is required to perform, without demur, and to the best of his ability, the work allotted to him, either inside or outside the establishment. As a rule, all inmates have to work on weekdays an equal number of hours, and to perform in that time a task proportionate to their capacity, the completion of which, however, does not exempt them from working to the end of the usual time. The administration may, however, under certain circumstances curtail the duration of the daily hours of work, and the extent of the task in individual cases. Anyone who, owing to idleness or negligence, fails to perform his allotted task, or who in general works slothfully or negligently, will be punished. No inmate may, without permission, allow his work to be done for him by another or do another's work. (18) No work is done on Sundays and Christian festivals. Prisoners of the Jewish religion may, at their request, be exempted from work on the Sabbath and the Jewish high festivals:--Feast of Weeks, New Year, Feast of Expiation, Feast of Tabernacles, and the first two and the last two days of the Passover; in that event they may, on the order of the Director, be employed in noiseless work as Sundays and the Christian festivals. (19) The proceeds of the work done by the inmates on the order of the administration belong to the Municipality of Berlin, and are paid into the treasury of the establishment. The extra-pay paid to the inmates by employers is divided into two equal parts, of which one is placed at the inmate's disposal for the purchase of extra food, the payment of postage, and other necessary expenses, during his detention, while the other accumulates as savings until his discharge. (20) Every inmate must deposit his tools and implements in an orderly manner at the assigned place at the close of work; he may not take anything with him from the workshop.