4. An Act of Navigation for the Congo, which, while having regard to local circumstances, extends to this river, its affluents, and the waters in its system (_eaux qui leur sont assimilées_), the general principles enunciated in Articles CVIII. and CXVI. of the Final Act of the Congress of Vienna, and intended to regulate, as between the Signatory Powers of that Act, the free navigation of the waterways separating or traversing several States—these said principles having since then been applied by agreement to certain rivers of Europe and America, but especially to the Danube, with the modifications stipulated by the Treaties of Paris (1856), of Berlin (1878), and of London (of 1871 and 1883). 5. An Act of Navigation for the Niger, which, while likewise having regard to local circumstances, extends to this river and its affluents the same principles as set forth in Articles CVIII. and CXVI. of the Final Act of the Congress of Vienna. 6. A Declaration introducing into international relations certain uniform rules with reference to future occupations on the coasts of the African Continent. The treaties which, before the adoption of these resolutions on February 26, 1885, the Congo Free State had concluded with various Powers, were those with the United States of America, dated April 22, 1886; Germany, 8th November; Great Britain, 16th December; Italy, 19th December; Spain, 7th January, 1885; France, 5th February; Russia on the same day; Sweden and Norway, 10th February; Portugal, 14th February; Denmark and Belgium, 23rd February. These treaties[7] were notified to the Conference on the 23rd February, and the neutrality of the State was declared and published on the 1st August in the same year. [Sidenote: Praise from Bismarck.] At the close of the Berlin Conference on 26th February, 1885, Prince Bismarck offered his tribute of appreciation for the work which, deriving its inspiration from the King of the Belgians, had, by the Powers represented, been formulated into an economic code for the guidance of the four nations, which, besides the Congo Free State, occupied the great Congo Basin. Prince Bismarck’s address has the effect of oracular utterance in the light of events since the day when he wisely said that the work of the Conference would be, like every human undertaking, susceptible of improvement. The following is the full text of Prince Bismarck’s closing speech: GENTLEMEN:—Our Conference, after long and laborious deliberations, has reached the end of its work, and I am happy to state that, thanks to your efforts, and to the spirit of conciliation which has presided at our negotiations, a complete agreement has been established on all the points of the programme which was submitted to us.