Chicago, Feb. 19. —The Tribune correspondent, in giving a description of the battle at Fort Donelson, says, that when Col. Crafts’ brigade, which had been ordered to reinforce Gen. McClernand, came up in the rear of the thirtieth, thirty first, and twenty-fifth Kentucky, these regiments were lying down and firing over the crest of a hill. They rose, and not knowing whether the force in their rear was friend or foe, the twenty-fifth Kentucky, supposing them to be rebels, poured in a raking volley on them, which did terrible execution, and was sufficient to throw the entire brigade into disorder at once, which was almost a panic. Some threw down their guns and equipments, and fled immediately. The woods were filled with stragglers. Some even fled to fort Henry.