When I got a chance, I asked Sally Woodburn how Mrs. Stuyvesant-Knox made her distinctions in snubbing some people and preening herself to others.

"My deah," said Sally (I'm to call her "Sally" now; it's been understood between us for some time), "my deah, you're a poor, innocent child, and I reckon you've been brought up in darkness, without even so much as hearing of the Four Hundred."

"What are the Four Hundred? Are they a kind of Light Brigade, like the Six Hundred?" I asked. "Or is it a sort of governing body like—like the Council of Three?"

She laughed so much at this, with her charming, velvety laugh, that I grew quite nervous, for it's embarrassing to have said something funny when you've meant to be rather intelligent. But soon she took pity on me. "You perfect love," she said; "that's really too sweet. It deserves to be put into Life, or something. And yet you're not so far wrong, when one comes to think of it. The Four Hundred is a kind of governing body; only I believe it's really reduced to Two Hundred now. They govern New York; and Newport; and Lennox; and Bar Harbour; and several other places which are considered very nice and important."

"Oh! Are they Republicans or Democrats?" I enquired, sure that I really was being intelligent at last, for I'd heard Stan say that, in America, the Republican party was rather like our Conservatives, and the Democrats like the Liberals; and I'd remembered because I believe I should be very much interested in politics if only I understood more about them. But Sally seemed to think that question funny, too.

"They can be either, my poor lamb," she exclaimed; "and they can be almost anything else they like, if only they're just awfully, dreadfully rich, and can manage to scrape up a family crest. It used to be the crest that counted, with the man who invented the Four Hundred; but since his day, that idea has got buried under heaps and heaps of gold, and pearls and diamonds; especially pearls. In those places I was telling you about, you don't exist unless you're in the Four Hundred, which is now being sifted down to Two Hundred, and will probably be Seventy-five in a year or two. You may have the bluest blood in America in your veins; you may be simply smeared with ancestors, but if you haven't managed to push forward in a clever, indescribable way, neither they nor you will ever be noticed, and your grey hairs will go down to the grave in the Wrong Set. Now do you understand why my cousin Katherine makes narrow eyes for some people, and broad smiles for others?"

"Ye-es, I suppose I do," I answered. "Only—we are quite different at home. I haven't been about at all yet, but I know; because some things are in the air. How did Mrs. Stuyvesant-Knox ever have the poor Wrong Setters for acquaintances, though?"

"Because (she'd kill me if she heard this) she has only lately got into the Right Set herself, and after trouble enough to give an ordinary woman nervous prostration. That kind of thing does give it to a lot of women—especially if they fail. But Cousin Katherine very seldom fails. She almost always carries things through. If you knew anything about America in general, and New York in particular, you'd be able to realise what a hard time she's had, when I tell you that till her husband died she lived west of Chicago. To get into the Four Hundred if you've lived west of Chicago, (unless you're Californian, which is getting to be fashionable), is just like having to climb over one of those great, high walls of yours in England, bristling with nails or broken glass."

"My goodness!" I exclaimed. "How funny! Fancy if people who live in Surrey should glare at people who live in Devonshire."

"That's different. You see, Chicago is new."