Although your committee were instructed to inquire only in reference to the attack, capture, and massacre of Fort Pillow, they have deemed it proper to take some testimony in reference to the operations of Forrest and his command immediately preceding and subsequent to that horrible transaction. It will appear, from the testimony thus taken, that the atrocities committed at Fort Pillow were not the result of passions excited by the heat of conflict, but were the results of a policy deliberately decided upon and unhesitatingly announced. Even if the uncertainty of the fate of those officers and men belonging to colored regiments who have heretofore been taken prisoners by the rebels has failed to convince the authorities of our government of this fact, the testimony herewith submitted must convince even the most skeptical that it is the intention of the rebel authorities not to recognize the officers and men of our colored regiments as entitled to the treatment accorded by all civilized nations to prisoners of war. The declarations of Forrest and his officers, both before and after the capture of Fort Pillow, as testified to by such of our men as have escaped after being taken by him; the threats contained in the various demands for surrender made at Paducah, Columbus, and other places; the renewal of the massacre the morning after the capture of Fort Pillow; the statements made by the rebel officers to the officers of our gunboats who received the few survivors at Fort Pillow--all this proves most conclusively the policy they have determined to adopt. The first operation of any importance was the attack upon Union city, Tennessee, by a portion of Forrest's command. The attack was made on the 24th of March. The post was occupied by a force of about 500 men under Colonel Hawkins, of the 7th Tennessee Union cavalry. The attacking force was superior in numbers, but was repulsed several times by our forces. For the particulars of the attack, and the circumstances attending the surrender, your committee would refer to the testimony herewith submitted. They would state, however, that it would appear from the testimony that the surrender was opposed by nearly if not quite all the officers of Colonel Hawkins's command. Your committee think that the circumstances connected with the surrender are such that they demand the most searching investigation by the military authorities, as, at the time of the surrender, but one man on our side had been injured.