What served to increase this, was the cannonade at the town.
"A Sketch of the Life of Brig. Gen. Francis Marion"
William Dobein James
The batteries of the besiegers, having now obtained a decided superiority over those of the besieged, when the third parallel had opened its cannonade, and the British having crossed the wet ditch by sap, they opened a fire of rifles within twenty-five yards of the Americans.
"A Sketch of the Life of Brig. Gen. Francis Marion"
William Dobein James
Ned was there, indeed, very near and yet very far, and he was wondering, as were many American officers and soldiers, why the Mexicans did not cannonade the invading army while it was coming ashore.
"Ahead of the Army"
W. O. Stoddard