Lighthouses.Art. XVII. The general administration of the light-houses of the Ottoman Empire having undertaken to provide for the expenses of superintendence, maintenance, and lighting of the lighthouses of the mouths of the Danube, that portion of the whole amount of tax levied, representing the light dues, shall he paid into the hands of the said Administration ; but it is understood that these dues can have no other object, in what concerns the existing lighthouses, and those that it may here-after be judged useful to establish, than to cover their real expenses[1].
§ 3. On Quarantine.
QuarantineArt. XVIII. The sanitary measures applicable to the mouths of the Danube shall continue to be regulated by the Superior Board of Health, instituted at Constantinople, and in which the various foreign missions accredited to the Sublime Porte are represented by Delegates[2]. These measures shall be framed so as to conciliate in a just degree security for the public health with the requirements of maritime commerce, and they shall be based, as far as possible, on the principles laid down in Articles XIX and XX hereinafter.
Art. XIX. Vessels descending the Danube shall be free from all sanitary control ; it shall be the same for vessels entering the river from the sea as long as there shall be no contagious pestilence prevailing in the East. These vessels shall be simply bound to produce their bill of health to the authorities of the port where they shall anchor.
Art. XX. If a contagious pestilence happens to break out in the East, and if it is judged necessary to put in force sanitary measures on the Lower Danube, quarantine may be reestablished at Sulina. Vessels entering from the sea shall be bound in this case to perform quarantine at Sulina, and if the pestilence has not invaded the Provinces of Turkey in Europe, they can be subject to no other sanitary control in ascending the river.
But if, on the contrary, the pestilence invades one or many of the Riverain Provinces of the Danube, quarantine establish-
