...on, however, that he did not know where the enemy was. The first time I ever saw Vicksburg was in April before the siege. As the engineer officer in charge of the fortification at Snyder's and Hayne 's bluffs, I had been making requisitions on Mobile and other points through Generals Lee and Stevenson, for materials to secure the immense raft constructed across the Yazoo river, opposite the seige...