The answer to this, was the surrounding of the camp by 5,000 Federal troops, and the following notice from Captain Lyon: “SIR,—Your command is regarded as hostile towards the Government of the United States. It is, for the most part, made up of those who have avowed their hostility to the General Government, and have been plotting for the seizure of its property and the overthrow of its authority. You are openly in communication with the so-called Southern Confederacy, which is now at war with the United States, and you are receiving at your camp, from the said Confederacy and under its flag, large supplies of material of war, most of which is known to be the property of the United States. These extraordinary preparations plainly indicate none other than the well-known purpose of the Governor of this State, under whose orders you are acting; and whose purpose, recently communicated to the Legislature, has just been responded to by that body in the most unparalleled legislation, having in direct view hostilities to the General Government and co-operation with its enemies.” Actuated by these considerations, and also by the failure to break up the camp, in obedience to the Presidential Proclamation of April 15th, Captain Lyon demanded its immediate surrender. After a hasty consultation with his officers, General Frost complied, and the place was surrendered unconditionally. But when the result was announced to the troops, it was received with the wildest yells, curses and groans. Some railed out against treachery, but the more loyal were rejoiced at the prospect of escaping from what they denominated a school of secession. Numbers of outsiders, also, when the news became known, rushed into the camp and gave loud voice to their feelings of indignation. The camp had in reality become a vast mob. Hurrahs for Jeff. Davis were given—many of the now disarmed soldiers joining in them. The United States troops were insulted in every possible manner, and rowdyism ruled the hour triumphantly. Officers had broken their swords and privates their guns before surrendering them. The task of marching the men out was a work of great difficulty, but at last it was accomplished, and the prisoners surrounded by two files of loyal troops. This act brought the fury of the mob to a climax, and when most of the troops had left, the few German soldiers that brought up the rear were attacked by the crowd, and showers of stones rattled upon them. The Federals presented their muskets, for the purpose of intimidating the mob, but without avail. The order to fire at length became necessary. It was given and executed with terrible effect, and the swiftly retreating mob left behind them from thirty to forty of their number, either dead or lying on the ground weltering in blood. Many of the prisoners took the oath of fidelity to the Constitution and the laws, and were set free. A large amount of arms, ammunition, stores, camp equipage and stock was seized.