_Commerce Street, Where Slaves were Sold. The "Step" is Deeply Worn By The Feet of those Who Mounted It_] There were, therefore, but two feasible plans for the North to accomplish its "on to Richmond" purpose. One was to take Fredericksburg and with it the roads and railway to Richmond; Burnside tried this. The other, to cross the river just above, and get in the rear of Fredericksburg, thus getting the roads and railways to Richmond; Hooker and Grant tried this. [Sidenote: _Threats of Bombardment_] On November 20th, General Sumner peremptorily demanded the surrender of the town, under threat of immediate bombardment, but on receiving a request from Mayor Slaughter, he consented to extend the time twenty-four hours and sent General Patrick across the river with a message, as follows: "Gentlemen: Under cover of the houses of your town, shots have been fired upon the troops of my command. Your mills and factories are furnishing provisions and materials for clothing for armed bodies in rebellion against the authority of the Government of the United States. Your railroads and other means of transportation are removing supplies to the depot of such troops. This condition of things must terminate; and by direction of Major-General Burnside, commanding this army, I accordingly demand the surrender of this city into my hands, as a representative of the Government of the United States, at or before five o'clock this afternoon (five o'clock P. M. to-day). Failing an affirmative reply to this demand by the time indicated, sixteen hours will be permitted to elapse for the removal from the city of women and children, the sick, wounded, and aged; which period having elapsed, I shall proceed to shell the town. "Upon obtaining possession of the town, every necessary means will be taken to preserve order and to secure the protective operation of the laws and policy of the United States Government." While General Patrick waited from 10:00 A. M. until 7:00 P. M. (November 21) in a log house at French John's Wharf, the note was passed through the hands of a civic committee who had previously met General Lee at "Snowden," (now the beautiful home of Mr. and Mrs. F. C. Baldwin) on which were: Mayor Slaughter, William A. Little and Douglas H. Gordon. A note from General Lee was then transmitted to the town officials by General J. E. B. Stuart. This Mayor Slaughter, Dr. Wm. S. Scott and Samuel Harrison delivered late in the afternoon to General Patrick. General Lee simply said the town was non-combatant; that he would not occupy it, nor would he allow any one else to occupy it. [Sidenote: _The Citizens Driven Out_]