I can safely say, I have never been so dog-tired as that night in Chicago. When it was time to start, I descended the platform like a man in a dream. It was a long train, lighted from end to end; and car after car, as I came up with it, was not only filled but overflowing. My valise, my knapsack, my rug, with those six ponderous tomes of Bancroft, weighed me double; I was hot, feverish, painfully athirst; and there was a great darkness over me, an internal darkness, not to be dispelled by gas. When at last I found an empty bench, I sank into it like a bundle of rags, the world seemed to swim away into the distance, and my consciousness dwindled within me to a mere pin’s head, like a taper on a foggy night.