... Yesterday Fort Pickens opened fire on our batteries at Pensacola, but without effect. One of their ships was badly crippled. The enemy occupy Tybee Island, and threaten Savannah. Vice-President Stephens was in my office to-day, and he too deprecates the passage of so many people to the North, who, from the admission of the journals there, give them information of the condition of our defenses. He ...