That word kinder bricked us up for a minute. Then Jim says—rather timid, because he see Tom was getting pretty tetchy: “Mars Tom, what is a metaphor?” “A metaphor’s a—well, it’s a—a—a metaphor’s an illustration.” He see _that_ didn’t git home, so he tried again. “When I say birds of a feather flocks together, it’s a metaphorical way of saying—” “But dey _don’t!_, Mars Tom. No, sir, ’deed dey don’t. Dey ain’t no feathers dat’s more alike den a bluebird en a jaybird, but ef you waits till you catches dem birds together, you’ll—” “Oh, give us a rest! You can’t get the simplest little thing through your thick skull. Now don’t bother me any more.” Jim was satisfied to stop. He was dreadful pleased with himself for catching Tom out. The minute Tom begun to talk about birds I judged he was a goner, because Jim knowed more about birds than both of us put together. You see, he had killed hundreds and hundreds of them, and that’s the way to find out about birds. That’s the way people does that writes books about birds, and loves them so that they’ll go hungry and tired and take any amount of trouble to find a new bird and kill it. Their name is ornithologers, and I could have been an ornithologer myself, because I always loved birds and creatures; and I started out to learn how to be one, and I see a bird setting on a limb of a high tree, singing with its head tilted back and its mouth open, and before I thought I fired, and his song stopped and he fell straight down from the limb, all limp like a rag, and I run and picked him up and he was dead, and his body was warm in my hand, and his head rolled about this way and that, like his neck was broke, and there was a little white skin over his eyes, and one little drop of blood on the side of his head; and, laws! I couldn’t see nothing more for the tears; and I hain’t never murdered no creature since that warn’t doing me no harm, and I ain’t going to. But I was aggravated about that welkin. I wanted to know. I got the subject up again, and then Tom explained, the best he could. He said when a person made a big speech the newspapers said the shouts of the people made the welkin ring. He said they always said that, but none of them ever told what it was, so he allowed it just meant outdoors and up high. Well, that seemed sensible enough, so I was satisfied, and said so. That pleased Tom and put him in a good humor again, and he says: “Well, it’s all right, then; and we’ll let bygones be bygones. I don’t know for certain what a welkin is, but when we land in London we’ll make it ring, anyway, and don’t you forget it.” He said an erronort was a person who sailed around in balloons; and said it was a mighty sight finer to be Tom Sawyer the Erronort than to be Tom Sawyer the Traveler, and we would be heard of all round the world, if we pulled through all right, and so he wouldn’t give shucks to be a traveler now.