The Rebel generals must now make their choice between permitting themselves to be cut off from their base of operations and sources of supply and reinforcement, and attempting to reach Forsyth, in which case they will have to give us battle. The movement from Neosho leaves no doubt that they intend to fight. It is said by the deserters that Price would be willing to avoid an engagement, but he is forced to offer battle by the necessities of his position, the discontent of his followers, the approaching expiration of their term of enlistment, and the importunities of McCulloch, who declares he will not make another retreat. We are now perfectly prepared. Hunter's delay leaves us with only twenty-two thousand men, seventy pieces of artillery, and about four thousand cavalry. In view of our superiority as respects armament, discipline, and ordnance, we are more than a match for our opponent. We sleep to-night in constant expectation of an attack: two guns will be fired as a signal that the enemy are at hand. THE REMOVAL. _Springfield, November 2d_. The catastrophe has come which we have long dreaded, but for which we were in no degree prepared. This morning, at about ten o'clock, while I was standing in front of my tent, chatting with some friends, an officer in the uniform of a captain of the general staff rode up, and asked the orderly to show him to the General. He went into the house, and in a few moments came out and rode off. I soon learned that he had brought an order from General Scott informing General Fremont that he was temporarily relieved of his command, and directing him to transfer it to Major-General Hunter and report himself to the head-quarters of the army by letter. The order was originally dated October 7th, but the date had been altered to October 24th, on which day it left St. Louis,--the day the Guards started upon their expedition, to Springfield. This order, which, on the very eve of consummation, has defeated the carefully matured plans upon which the General's fortunes and in so large a measure the fortunes of the country depended,--which has destroyed the results of three months of patient labor, transferring to another the splendid army he has called together, organized, and equipped, and giving to another the laurel wreath of victory which now hangs ready to fall at the touch,--this order, which has disappointed so many long-cherished hopes, was received by our magnanimous General without a word of complaint. In his noble mind there was no doubt or hesitation. He obeyed it promptly and implicitly. He at once directed Colonel Eaton to issue the proper order transferring the command to General Hunter, and having prepared a brief address to the soldiers, full of pathos and patriotic devotion, he rode out accompanied by the Delawares to examine the positions south of the village.