Still further, she has declared, by the vote of nearly FORTY THOUSAND Freemen, that Slavery shall not be extended,--that Slavery shall not be allowed to continue under the National Government, wherever that Government is responsible for it,--and that the Slave Power shall no longer control the policy of our country. To support these paramount principles, without equivocation or compromise, at all times and in every way, she has now given her first earnest and determined pledge. Freemen of Massachusetts! it remains with you to redeem this pledge by further exertions. An election of State officers and of Members of Congress will take place on Monday, November 13th. The principles which we have upheld in the Presidential election, as paramount to all others, let us continue to uphold and advance through the new organization now happily established. Following the example of the other parties, and recognizing the necessity of such a course, we can sustain those only who sustain this organization. We are a separate party, and, as such, have separate candidates. Remember, then, to vote for no man who is not willing to unite with us in declaring opposition to Slavery and the Slave Power to be above all other questions, and who cannot be relied upon to sustain those men only who join in this alliance of principle. Vote for STEPHEN C. PHILLIPS, of Salem, our candidate for Governor, and for JOHN MILLS, of Springfield, our candidate for Lieutenant-Governor,--men familiar with all the concerns of the Commonwealth, of well-tried prudence, of best capacity, and of inflexible devotion to FREEDOM. Vote, also, for the Congressional Candidates nominated by the Free-Soil District Conventions. Vote, likewise, for the Senatorial Candidates nominated by the Free-Soil County Conventions. And, in your respective towns, vote for such Representatives only as may be relied upon to sustain, in the Legislature of the Commonwealth, the principles which we have at heart, and the new organization dedicated to their support. The final success of our candidates for Governor and Lieutenant-Governor may depend upon the firmness of these men. Freemen of Massachusetts! Three months only have elapsed to-day since the Convention at Buffalo. In this brief period we have taken our place as one of the great parties of the country. With one bound we have leaped to our present position. In Massachusetts we are not the _third party_. Let our efforts in the next election show us to be FIRST. _First_ in principles we already are,--_first_ in devotion to those truths which give dignity and security to our common country: let us be FIRST also in numbers and power.