The camp was ominously still this night. We were not allowed to sing or make any noise, nor have any fires--except just enough to make coffee--for fear of attracting the fire of the enemies' batteries. But there was no need of such an inhibition as to singing or frolicking, for there was no disposition to indulge in either. Unquestionably, the problems of the morrow were occupying all breasts. Letters were written home--many of them "last words"--and quiet talks were had, and promises made between comrades. Promises providing against the dreaded possibilities of the morrow. "If the worst happens, Jack." "Yes, Ned, send word to mother and to----, and these; she will prize them," and so directions were interchanged that meant so much. I can never forget the quiet words of Colonel Oakford, as he inquired very particularly if my roster of the officers and men of the regiment was complete, for, said he, with a smile, "We shall not all be here to-morrow night." Now to resume the story of the battle. We were on the march about six o'clock and moved, as I thought, rather leisurely for upwards of two miles, crossing Antietam creek, which our men waded nearly waist deep, emerging, of course, soaked through, our first experience of this kind. It was a hot morning and, therefore, the only ill effects of this wading was the discomfort to the men of marching with soaked feet. It was now quite evident that a great battle was in progress. A deafening pandemonium of cannonading, with shrieking and bursting shells, filled the air beyond us, towards which we were marching. An occasional shell whizzed by or over, reminding us that we were rapidly approaching the "debatable ground." Soon we began to hear a most ominous sound which we had never before heard, except in the far distance at South Mountain, namely, the rattle of musketry. It had none of the deafening bluster of the cannonading so terrifying to new troops, but to those who had once experienced its effect, it was infinitely more to be dreaded. The fatalities by musketry at close quarters, as the two armies fought at Antietam and all through the Civil War, as compared with those by artillery, are at least as 100 to 1, probably much more than that. These volleys of musketry we were approaching sounded in the distance like the rapid pouring of shot upon a tinpan, or the tearing of heavy canvas, with slight pauses interspersed with single shots, or desultory shooting. All this presaged fearful work in store for us, with what results to each personally the future, measured probably by moments, would reveal.