one hundred feet in the air.
Then a heavy sound, deep and rumbling, differing from any ever before heard by the Army of the Potomac, was borne five miles around.
For a few moments the air was thick with dust, and then the great yawning gap was visible.
The mine had done its work.
Then the artillery opened.
Never on the American continent was heard such an awful roar.
It commenced on the right and extended to the left, gun after gun joining in mighty chorus.
Gettysburg, Malvern Hill, Spotsylvania, Cold Harbor—these were as nothing.
It was dreadful and unparalleled. * * *
Often have the Confederates won enconiums for valor, but never before did they fight with such uncontrollable desperation.
It appeared as if our troops were at their mercy, standing helpless or running in terror and shot down like dogs.
The charge of the enemy against the negro troops was terrific.
With fearful yells they rushed down against them.
The negroes at once ran back, break