Gen. Gilmore assumed command in person, and left licrc with the determination to recapture the spoils of the rebel expedition and punish the audacity of the braggards. rercelving that they had converted a retreat Into a peaceful flight, he left the infantry and pushed on with his mounted force consisting of the 1st Kentucky cavalry, Col. Wolford; 45th Ohio cavalry, mounted, Col. Itunkle; a detachment of the 44tli, mounted, under MapMitehel, and 7th Ohio cavalry, Col. Ganard, In all 1,200 men.Such was the energy of the pursuit, that, notwithstanding the rebels had thirty-six hours the start, they were overtaken four miles north of Somerset.Gen. Carter, in command of S00 mounted men had reached Duck Creak, twelve miles from Somerset, where Gen. Gilmore reached him with his body guard and the 7th Ohio cavalry, increasing the number to 1,200 with which they double-quicked until within reach of the enemy's rear guard,When the skirmishing commeneed,Generals Gilmore and Carter, with Wolford's cavalry ana the body guard, were in the advance.