_Speeches of Hon. Sylvanus Evans and Richard Cooper, candidates for Congress and attorney general, Vicksburg, September_ 19, 1865. Pursuant to a call published in our yesterday's issue, a large number of citizens assembled at Apollo Hall last evening to listen to addresses from prominent candidates for office at the ensuing election. Shortly after 8 o'clock Hon. A. Burwell introduced Hon. Richard Cooper to the meeting, who addressed them as follows: SPEECH OF MR. COOPER. Fellow-citizens: I present myself before you to-night as a candidate for the office of attorney general. I have not before spoken in public since announcing myself, relying wholly upon my friends and past record. I have resided in this State twenty-nine years, and have for twelve years been a prosecuting attorney. Soon after announcing myself I found I had an opponent, and I concluded to accompany my friend, Judge Evans, to Vicksburg, merely to make myself known, not intending to make a speech. I was born in Georgia. The first vote I ever cast was with the old-line Whig party. [Applause.] In 1850 I opposed an attempt to break up the United States government, and in, 1860 I did the same thing. I travelled in Alabama and Mississippi to oppose the measure. [Applause.] But after the State did secede I did all in my power to sustain it. [Heavy applause.] I never entered the army, having held a civil office, and was advised by my friends that I could do more good in that way than by entering the service. I believed in secession while it lasted, but am now as good a Union man as exists, and am in favor of breaking down old barriers, and making harmony and peace prevail. I was a delegate to the State convention lately in session at Jackson, and hope the legislature will carry out the suggestions of the convention. I believe the negro is entitled to the claims of a freeman, now that he is made free, and I hope he will have them secured to him. I am thankful that Mississippi has the right of jurisdiction, and I hope she will always have it. The office I am a candidate for is not a political, but strictly a judicial office. If elected I shall use my utmost endeavors to promote the interests of the State and country. Hon. Sylvanus Evans was then introduced to the audience by Mr. Cooper, who spoke substantially as follows: SPEECH OF JUDGE EVANS.