"Which one are we to begin with?" questioned Theo eagerly.

"I think we'd better start with printed designs. Were you ever in Washington, Theo?"

Theo glanced up in surprise at the irrelevance of the inquiry.

"Yes, sir."

"Good! What were some of the places you visited?"

Again the lad regarded his conductor curiously.

What had his trip to Washington to do with the decoration of china, he wondered.

"Oh, I went to the Capitol, of course," he answered, "and to the White House, and the Congressional Library; then Dad took me to the Smithsonian Institute and to the Bureau of Printing and Engraving, and ——"

"Stop!" cried Mr. Marwood. "I now have found out exactly what I wished to know. So you have seen bank notes engraved?"

"Yes, sir."