This is a picture of Kit and Kat. They are Twins, and they live in Holland. Kit is the boy, and Kat is the girl.
Of course their real names are not Kit and Kat at all. Their real names are Christopher and Katrina. But you can see for yourself that such long names as that would never in the world fit such a short pair of Twins. So the Twins' Mother, Vrouw Vedder, said,
"They cannot be called Christopher and Katrina until they are four and a half feet high."
Now it takes a long time to grow four and a half feet of Boy and Girl. You know, chickens and puppies and colts and kittens always grow up much faster than twins. Kit and Kat ate a great many breakfasts and dinners and suppers, and played a great many plays, and had a great many happy days while they were growing up to their names. I will tell you about some of them.