wishes a constitutional amendment, 317;
wishes it mentioned in Republican platform, 319;
on impossibility of renewing slavery, 320;
led to make war on slavery by situation, 321;
sees necessity of its abolition to secure results of war, 322;
unable to treat with seceded States, 322, 323;
renews appeal for Constitutional amendment in 1864, 324;
exerts influence with Congressmen, 325;
congratulates crowd on passage of amendment, 326;
his responsibility in last weeks of war, 328;