They now made a more careful examination of the country around them. All was fresh and beautiful after the sultriness of the desert, and the sunshine and sweet, crisp air were delightful to the wanderers. Little mounds of yellowish green were away at the right, while on the left waved a group of tall leafy trees bearing yellow blossoms that looked like tassels and pompoms. Among the grasses carpeting the ground were pretty buttercups and cowslips and marigolds. After looking at these a moment Dorothy said reflectively:
 
"We must be in the Country of the Winkies, for the color of that country is yellow, and you will notice that 'most everything here is yellow that has any color at all."
 
"But I thought this was the Land of Oz," replied the shaggy man, as if greatly disappointed.
 
"So it is," she declared; "but there are four parts to the Land of Oz. The North Country is purple, and it's the Country of the Gillikins. The East Country is blue, and that's the Country of the Munchkins. Down at the South is the red Country of the Quadlings, and here, in the West, the yellow Country of the Winkies. This is the part that is ruled by the Tin Woodman, you know."
 
"Who's he?" asked Button-Bright.
 
"Why, he's the tin man I told you about. His name is Nick Chopper, and he has a lovely heart given him by the wonderful Wizard."
 
"Where does HE live?" asked the boy.
 
"The Wizard? Oh, he lives in the Emerald City, which is just in the middle of Oz, where the corners of the four countries meet."
 
"Oh," said Button-Bright, puzzled by this explanation.
 
"We must be some distance from the Emerald City," remarked the shaggy man.
 
"That's true," she replied; "so we'd better start on and see if we can find any of the Winkies. They're nice people," she continued, as the little party began walking toward the group of trees, "and I came here once with my friends the Scarecrow, and the Tin Woodman, and the Cowardly Lion, to fight a wicked witch who had made all the Winkies her slaves."
 
"Did you conquer her?" asked Polly.
 
"Why, I melted her with a bucket of water, and that was the end of her," replied Dorothy. "After that the people were free, you know, and they made Nick Chopper—that's the Tin Woodman—their Emp'ror."
 
"What's that?" asked Button-Bright.
 
"Emp'ror? Oh, it's something like an alderman, I guess."
 
"Oh," said the boy.
 
"But I thought Princess Ozma ruled Oz," said the shaggy man.
 
"So she does; she rules the Emerald City and all the four countries of Oz; but each country has another little ruler, not so big as Ozma. It's like the officers of an army, you see; the little rulers are all captains, and Ozma's the general."
 
By this time they had reached the trees, which stood in a perfect circle and just far enough apart so that their thick branches touched—or "shook hands," as Button-Bright remarked. Under the shade of the trees they found, in the center of the circle, a crystal pool, its water as still as glass. It must have been deep, too, for when Polychrome bent over it she gave a little sigh of pleasure.
 
"Why, it's a mirror!" she cried; for she could see all her pretty face and fluffy, rainbow-tinted gown reflected in the pool, as natural as life.
 
Dorothy bent over, too, and began to arrange her hair, blown by the desert wind into straggling tangles. Button-Bright leaned over the edge next, and then began to cry, for the sight of his fox ............