the field
artillery used in the campaign, the siege began. The first thing to do
was to get the artillery in batteries where they would occupy commanding
positions; then establish the camps, under cover from the fire of the
enemy but as near up as possible; and then construct rifle-pits and
covered ways, to connect the entire command by the shortest route. The
enemy did not harass us much while we were constructing our batteries.
Probably their artillery ammunition was short; and their infantry was
kept down by our sharpshooters, who were always on the alert and ready
to fire at a head whenever it showed itself above the rebel works.

In no place were our lines more than six hundred yards from the enemy.
It was necessary, therefore, to cover our men by something more than
the ordinary parapet. To give additional protection sand bags,
bullet-proof, were placed along the tops of the parapets far enough
apart to make loop-holes for musketry. On top of these, logs were put.
By these means the men were enabled to walk about erect when off duty,
without fear of annoyance from sharpshooters. The enemy used in their
defence explosive musket-balls, no doubt thinking that, bursting over
our men in the trenches, they would do some execution; but I do not
remember a single case where a man was injured by a piece of one of
these shells. When they were hit and the ball exploded, the wound was
terrible. In these cases a solid ball would have hit as well. Their
use is barbarous, because they produce increased suffering without any
corresponding advantage to those using them.

The enemy could not resort to our method to protect their men, because
we had an inexhaustible supply of ammunition to draw upon and used it
freely. Splinters from the timber would have made havoc among the men
behind.

There were no mortars with the besiegers, except what the navy had in
front of the city; but wooden ones were made by taking logs of the
toughest wood that could be found, boring them out for six or twelve
pound shells and binding them with strong iron bands. These answered as
cochorns, and shells were successfully thrown from them into the
trenches of the enemy.

The labor of building the batteries and intrenching was largely done by
the pioneers, assisted by negroes who came within our lines and who were
paid for their work; but details from the troops had often to be made.
The work was pushed forward as rapidly as possible, and whe