ANN DERRICKSON.--This was a white woman, the wife of a colored man, and lived at No. 11 York Street. On Wednesday, July 15th, the rioters seized a son of deceased, a lad of about twelve years, saturated his clothes and hair with camphene, and then procuring a rope, fastened one end to a lamp-post, the other around his neck, and were about to set him on fire, and hang him; they were interfered with by some citizens and by the police of the First Ward, and their diabolical attempt at murder frustrated. While Mrs. Derrickson was attempting to save the life of her son she was horribly bruised and beaten, with a cart-rung. The victim, after lingering three or four weeks, died from the effects of her injuries. Reports from the captains of the several precincts, with all the details of their operations, were made out--also from the subordinate military officers to their immediate superiors. The final reports of General Wool, commanding the Eastern Department, and Major-general Sandford, commanding the city troops, caused much remark in the city papers, and called forth a reply from General Brown, who considered himself unjustly assailed in them. Explanation of the disagreement between him and General Wool having been fully given, it is not necessary to repeat it here. The same may be said of the statement of General Wool, regarding his orders on Monday the 13th, respecting the troops in the harbor. But in this report of General Wool to Governor Seymour, there are other statements which General Brown felt it his duty to correct. General Wool says, that finding there was a want of harmony between Generals Sandford and Brown in the disposition of troops, he issued the following order: MAJOR-GENERAL SANDFORD, BREVET BRIGADIER-GENERAL BROWN. GENTLEMEN:--It is indispensable to collect your troops not stationed, and have them divided into suitable parties, with a due proportion of police to each, and to patrol in such parts of the city as may be in the greatest danger from the rioters. This ought to be done as soon as practicable. JOHN E. WOOL, _Major-general_. After this had been issued, General Sandford reporting to me that his orders were not obeyed by General Brown, I issued the following order: "All the troops called out for the protection of the city are placed under the command of General Sandford." General Brown in his reply says, that he "_never saw or heard of this first order_." The only explanation of this, consistent with the character of both, is that General Wool sent this order to General Sandford alone--either forgetting to transmit it to General Brown, or expecting General Sandford to do it.