California-Cornelius Cole, (R)-John Conness, (R). Connecticut-James Dixon, (D)-Orris S. Ferry, (R). Delaware-Willard Saulsbury, (D)-James A. Bayard, (D). Illinois-Lyman Trumbull, (R)-Richard Yates, (R). Indiana-Oliver P. Morton, (R)-Thomas A. Hendricks, (D). Iowa-James W. Grimes, (R)-James Harlan, (R). Kansas-Samuel C. Pomeroy, (R)-Edmund G. Ross, (R). Kentucky-Thomas C. McCreary, (D)-Garrett Davis, (D). Massachusetts-Charles Sumner, (R)-Henry Wilson, (R). Maine-William Pitt Fessenden, (R)-Lot M. Morrill, (R). Maryland-Reverdy Johnson, (D)-George Vickers, (D). Michigan-Zachariah Chandler, (R)-Jacob M. Howard, (R). Missouri-John B. Henderson, (R)-Charles D. Drake, (R). Minnesota-Alexander Ramsay, (R)-Daniel S. Norton, (D). New York-Roscoe Conkling, (R)-Edwin D. Morgan, (R). Nevada-James W. Nye, (R)-William M. Stewart, (R). Nebraska-Thomas W. Tipton, (R)-John M. Thayer, (R). New Jersey-Alexander G. Cattell, (R)-F. T. Frelinghuysen, (R). New Hampshire-Alexander H. Craigin, (R)-Jas. W. Patterson, (R). Ohio-John Sherman, (R)-Benjamin F. Wade, (R). Oregon-Henry W. Corbett, (R)-Geo. H. Williams, (R). Pennsylvania-Simon Cameron, (R)-Charles R. Buckalew, (D). Rhode Island-Henry B. Anthony, (R)-William Sprague, (R). Tennessee--David T. Patterson, (D)-Joseph S. Fowler, (R). Vermont-George F. Edmunds, (R)-Justin S. Morrill, (R). West Virginia-W. T. Willey,(R)-Peter (3. Van Winkle, (R). Wisconsin-James R. Doolittle, (D)-Timothy O. Howe, (R). [Forty-two Republicans and twelve Democrats.] The House bringing the Impeachment was three-fourths Republican--the Senate that tried it was more than three-fourths Republican--the managers on the part of the House were all Republicans--the counsel for the President were three Democrats and one Republican--the President on trial was a Democrat--the interrogatories propounded to witnesses were generally received or rejected, according as their probable answers would make for or against the President--the people of the country at large were, as a rule, rigidly divided on party lines relative to the case, Republicans demanding the conviction of the President and Democrats urging his acquittal. The Chief Justice presiding in the trial was the only strictly nonpartisan factor in the case. The answer of the President to the Articles of Impeachment having been presented on the 23rd of March, 1868--the replication of the House duly made, and all the preliminary steps completed, the proceedings in the actual trial commenced on the 30th day of March, 1868. Gen. Butler, one of the managers on the part of the House, made the opening argument for the prosecution, from which the following extracts are taken: