The Paris Conference of 1858: The Conference of the Powers which was held at Paris, from 22nd May to 19th August, 1858, with reference to the affairs of Wallachia and Moldavia, had under its consideration a Navigation Act signed at Vienna on 7th November, 1857, by the Riverain Commission[1], rejects the Act of the Riverain Commission,but declined to sanction it, as being drawn too exclusively in the interests of the commerce of the Riverain States[2]. The Act, amended in accordance with the views of the Conference[3], was again submitted to the Powers in 1859, but no notice having been taken of it, the Riverain Commission practically ceased to exist[4].
but prolongs the powers of the European Commission. On other hand, the same Conference prolonged the powers of the European Commission till it should have completed the works with which it was charged[5].
The Conference which sat at Paris from 10th March to 4th June, 1866, with reference to the United Principalities, ex-