John G. Nicolay, A Short Life of Abraham Lincoln, condensed from Nicolay and Hayes' Abraham Lincoln: A History

It was Meade who began the conflict at dawn on the morning of July 3, but only long enough to retake and hold the intrenchments on his extreme right, which he had lost the evening before; then for some hours an ominous lull and silence fell over the whole battle-field. But these were hours of stern preparation. At midday a furious cannonade began from one hundred and thirty Confederate guns on Seminary Ridge, which was answered with promptness and spirit by about seventy Union guns from the crests and among the boulders of Cemetery Ridge; and the deafening roar of artillery lasted for about an hour, at the end of which time the Union guns ceased firing and were allowed to cool, and to be made ready to meet the assault that was sure to come. There followed a period of waiting almost painful to officers and men, in its intense expectancy; and then across the broad, undulating, and highly cultivated valley swept the long attacking line of seventeen thousand rebel infantry, the very flower of the Confederate army. But it was a hopeless charge. Thinned, almost mowed down by the grape-shot of the Union batteries and the deadly aim of the Union riflemen behind their rocks and intrenchments, the Confederate assault wavered, hesitated, struggled on, and finally melted away before the destructive fire. A few rebel battle-flags reached the crest, only, however, to fall, and their bearers and supporters to be made prisoners. The Confederate dream of taking Philadelphia and dictating peace and separation in Independence Hall was over forever.

It is doubtful whether Lee immediately realized the full measure of his defeat, or Meade the magnitude of