The interior I found even more impressive than the exterior, perhaps because I was unprepared for it. I had become used to imposing exteriors at home, and did not reflect that in a structure like this I should see an interior also, and that here alone the soul of the building would be fully revealed. It was Miltonic in the best sense; it was like the mightiest organ music put into form. Such depths, such solemn vastness, such gulfs and abysses of architectural space, the rich, mellow light, the haze outside becoming a mysterious, hallowing presence within, quite mastered me, and I sat down upon a seat, feeling my first genuine cathedral intoxication. As it was really an intoxication, a sense of majesty and power quite overwhelming in my then uncloyed condition, I speak of it the more freely. My companions rushed about as if each one had had a searchwarrant in his pocket; but I was content to uncover my head and drop into a seat, and busy my mind with some simple object near at hand, while the sublimity that soared about me stole into my soul and possessed it. My sensation was like that imparted by suddenly reaching a great altitude: there was a sort of relaxation of the muscles, followed by a sense of physical weakness; and after half an hour or so I felt compelled to go out into the open air, and leave till another day the final survey of the building. Next day I came back, but there can be only one first time, and I could not again surprise myself with the same feeling of wonder and intoxication. But St. Paul's will bear many visits. I came again and again, and never grew tired of it. Crossing its threshold was entering another world, where the silence and solitude were so profound and overpowering that the noise of the streets outside, or of the stream of visitors, or of the workmen engaged on the statuary, made no impression. They were all belittled, lost, like the humming of flies. Even the afternoon services, the chanting, and the tremendous organ, were no interruption, and left me just as much alone as ever. They only served to set off the silence, to fathom its depth. The dome of St. Paul's is the original of our dome at Washington; but externally I think ours is the more graceful, though the effect inside is tame and flat in comparison. This is owing partly to its lesser size and height, and partly to our hard, transparent atmosphere, which lends no charm or illusion, but mainly to the stupid, unimaginative plan of it. Our dome shuts down like an inverted iron pot; there is no vista, no outlook, no relation, and hence no proportion. You open a door and are in a circular pen, and can look in only one direction,--up. If the iron pot were slashed through here and there, or if it rested on a row of tall columns or piers, and were shown to be a legitimate part of the building, it would not appear the exhausted receiver it does now.