leave off all these other elements, and just use the nitrogen
alone?"

"They did on another plot in the same field."

"Oh, they did do that? What was the yield on that plot?"

"Only twenty bushels."

"Only twenty bushels! Well, that s mighty queer. How do you account
for that?"

"Does Mrs. Thornton sometimes make dough out of flour and milk?"
asked Percy.

"Another Yankee question, eh?" said Mr. Thornton. "I told my wife
once that I wished she could make the bread my mother used to make,
and she said she wished I could make the dough her father used to
make. Yes, my wife makes dough, a good deal more than I do, and she
makes it of flour and milk, when we aren't reduced to corn meal and
water."

"Can she make dough of flour alone?" continued Percy.

"No," replied Mr. Thornton.

"Nor of milk alone?"

"No."