... what is called the bulkhead, to-morrow, into deeper water. The bulkhead is a bar inside the inlet, similar to that outside, but the water is so shallow, that bales of hay, from the wrecked City of New-York , ground on it from one ebb-tide until the next flood. It forms a barrier against the sea from the sound, hence its name. On Saturday we move in the direction of Roanoke Island, where the rebels a...