"Whose cow is she?"
"Mine."
"Yours?" And the butcher gazed at Nat curiously.
"Yes. I've owned her ever since she was a little calf."
"And now you are tired of her?"
"Not exactly that, but I want to use the money. Will you buy her?"
"Yes, but not for thirty dollars."
"How much will you give?"
"Twenty dollars."
"I don't care to sell for twenty dollars."