28th.—Rode to Sharpsburg to-day to procure some medicines, of which we are sadly deficient. Found a purveyor there, but he had no medicines except morphine and brandy. I passed over Antietam battle-field. The smell was horrible. The road was lined with carriages and wagons conveying coffins and boxes for the removal of dead bodies, and the whole battle-field was crowded with people from distant States exhuming and removing the bodies of their friends. ‘Twas a sad, sad sight, and whilst the world is calculating the chances of war, and estimating its cost in dollars, I am dotting down in my memory the sad scenes I witness as small items in the long account of heart-aches.