real value. But I know, also, that none of my married friends would swap wives with me. That's your exchangeable value. " Ah , Pat, Pat," said a schoolmistress to a thick-headed urchin into whose muddy brain she was attempting to beat the alphabet—"I'm afraid you'll never learn anything. Now, what's that letter, eh?" "Sure, and I don't know ma'am," replied Pat. "Thought you might have remembered that." "Why, ma'am?" "Because it has a dot over the top of it." "Och, ma'am, I mind it well; but sure I thought it was a speck." "Well, now remember, Pat, it's I." "You, ma'am?" "No! no! not U but I." "Not I, but you, ma'am—how's that?" "Not U, but I, blockhead!" "Och, yis, faith; now I have it, ma'am. You mean to say, that not I but you are a blockhead?" "Fool! fool!" exclaimed the pedagoguess bursting with rage. "Just as you please," quietly responded Pat, "fool or blockhead—it's no matter, so long as yer free to own it!"