War of the Rebellion: Serial 124 Page 1145 UNION AUTHORITIES.

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have exercised their authority to prevent the departure of new hostile expeditions from British ports. The Emperor of France has by a like proceeding, promptly vindicated the neutrality which he proclaimed at the beginning of the contest. Questions of great intricacy and importance have arisen out of the blockade, and other belligerent operations, between the Government and several of the maritime powers,but they have been discussed, and, as far as was possible, accommodated in a spirit of frankness, justice, and mutual good will. It is especially gratifying that our prize courts, by the impartiality of their adjudications, have commanded the respect and confidence of maritime powers.

The supplemental treaty between the United States and Great Britain for the suppression of the African slave trade, made on the 17th day of February last, has been duly ratified and carried into execution. It is believed that, so far as American ports and American citizens are concerned, that inhuman and odious traffic has been brought to an end.

I shall submit for the consideration of the Senate a convention for the adjustment of possessory claims in Washington Territory, arising out of the treaty of the 15th June, 1846, between the United States and Great Britain, and which have been the source of some disquiet among the citizens of that now rapidly improving part of the country.

A novel and important question, involving the extent of the maritime jurin in the waters which surround the island of Cuba has bout reaching an agreement, and it is proposed in an amicable spirit to refer it to the arbitrament of a friendly power. A convention for that purpose will be submitted to the Senate.

I have thought it proper subject to the approval of the Senate, to concur with the interested commercial powers in an arrangement for the liquidation of the Scheldt dues upon the principles which have been heretofore adopted in regard to the imposts upon navigation in the waters of Denmark.

The long-pending controversy between this Government and that of Chile touching the seizure at Sitana, in Peru, by Chilean officers of a large amount in treasure belonging to citizens of the United States has been brought to a close by the award of His Majesty the King of the Belgians, to whose arbitration the question was referred by the parties. The subject was thoroughly and patiently examined by that justly respected magistrate, and, although the sum awarded to the claimants may not have been as large as they expected, there is no reason to distrust the wisdom of His Majesty's decision. That decision was promptly complied with by Chile when intelligence in regard to it reached that country.

The joint commission, under the act of the last session, for carrying into effect the convention with Peru on the subject of claims, has been organized at Lima and is engaged in the business intrusted to it.

Difficulties concerning interoceanic transit through Nicaragua are in course of amicable adjustment.

In conformity with principles set forth in my last annual message, I have received a representative from the United States of Colombia, and have accredited a minister to that Republic.

Incidents, occurring in the progress of our civil war have forced upon my attention the uncertain state of international questions touching the rights of foreigners in this country and of United States citizens abroad. In regard to some governments, these rights are at