We crossed right over the Fifteenth Corps' works and filed to the left, keeping along on the outside of our works.

We had not gone far before the Rebel gunners in the main works around the City discovered us; and the way they did tear loose at us was a caution.

Their aim was rather bad, however, and most of their shots went over us.

We saw one of them--I think it was a shell--strike an artillery caisson belonging to one of our-batteries.
It exploded as it struck, and then the caisson, which was full of ammunition, exploded with an awful noise, throwing pieces of wood and iron and its own load of shot and shell high into the air, scattering death and destruction to the men and horses attached to it.

We thought we saw arms and legs and parts of bodies of men flying in every direction; but we were glad to learn afterwards that it was the contents of the knapsacks of the Battery boys, who had strapped them on the caissons for transportation.
"Just after passing the hill where our battery was making things so lively, they stopped firing to let us pass.