Violence begets violence, and that in San Domingo naturally extended. It is with nations as with individuals,--once stepped in, they go forward. The harsh menace by which the independence of the Black Republic was rudely assailed came next. It was another stage in belligerent intervention. As these things were unfolded, I felt that I could not hesitate. Here was a shocking wrong. It must be arrested; and to this end I have labored in good faith. If I am earnest, it is because I cannot see a wrong done without seeking to arrest it. Especially am I moved, if this wrong be done to the weak and humble. Then, by the efforts of my life and the commission I have received from Massachusetts, am I vowed to do what I can for the protection and elevation of the African race. If I can help them, I will; if I can save them from outrage, I must. And never before was the occasion more imminent than now. CONTRACT FOR CESSION OF TERRITORY. I speak only according to unquestionable reason and the instincts of the human heart, when I assert that a contract for the cession of territory must be fair and without suspicion of overawing force. Nobody can doubt this rule, whether for individuals or nations. And where one party is more powerful than another it becomes more imperative. Especially must it be sacred with a Republic, for it is nothing but the mandate of Justice. The rule is general in its application; nay, more, it is part of Universal Law, common to all municipal systems and to International Law. Any departure from this requirement makes negotiation for the time impossible. Plainly there can be no cession of territory, and especially no surrender of national independence, except as the result of war, so long as hostile cannon are frowning. The first step in negotiation must be the withdrawal of all force, coercive or minatory. BOAST OF SPAIN.