The convention re-assembled at 10 o'clock on Wednesday the 28th at Plowman street Hall, Ephraim Lawson, Vice President, in the chair, who opened the proceedings with Prayer. A note was received from the President, Rev. William Tasker, stating that indisposition would prevent him from presiding over the deliberations of the body the remainder of its sessions. The attendance of the delegates was small in the morning, and very few lookers on were present. The platform being again taken up, F. Harris, of Baltimore, presented a protest against the adoption of the fourth resolution, which pointed out Liberia as the place of emigration for the colored people, because it recommends emigration to that place contrary to the wishes of his constituents, and a majority of the free colored people of the city and State. He contended that if they were for Liberia, they should say so at once, and tell the mob out doors that they were endeavoring to send them all there--not say one thing in the convention and another outside. James A. Jones, of Kent, said that Harris was endeavoring to shape his course the way the wind blowed. For himself, he hoped the entire platform would be adopted, and without further debate he moved that the fourth resolution be passed. Stephen W. Hill, of Baltimore, contended that the resolutions did not look to an immediate emigration to Africa--that they only recommended Liberia as a place where they could enjoy the blessings of liberty, and as the most suitable country for the colored man whenever they should be disposed to seek another home. William Perkins, of Kent, in answer to the protest of Harris, said the only platform they recommended for adoption, left it to every man to go where he pleased, or to remain here if it suited him better. Let Mr. Harris go to his constituents and tell them that the convention only recommended what it thought best; its action was binding on no man. F. Harris, in reply, asked if the convention had examined Liberia. They recommended that place for them to emigrate to, and yet they had not made any examination of Liberia to know whether it would suit. Did they know anything of the climate or agriculture of Liberia to lay before the people. Let them examine Canada, Jamaica, and other places, and then if they found Liberia the best place, why say so to the people.