...cumspection. At one time it seemed impossible for him to be of any practical service to his country, so completely was he in the power of the secessionists, civil and military. At that time the United States steamer Mohawk, Captain T. A. Craven, was cruising for slave-ships in the vicinity of the Florida Keys and the coast of Cuba; and at about the time of Mr. Lincoln's election, Captain (afterward Quar...