“Ah, but they look at it as a Nature Unit. Each girl must take forty units in the course. I think we only do one unit each day we go out.”

“It must,” I said, “be pretty fatiguing work, and what about the Excursion?”

“That’s every Saturday. We go out with Miss Stalk, the professor of Ambulation.”

“And where do you go?”

“Oh, anywhere. One day we go perhaps for a trip on a steamer and another Saturday somewhere in motors, and so on.”

“Doing what?” I asked.

“Field Work. The aim of the course—I’m afraid I’m quoting Miss Stalk but I don’t mind, she’s really fine—is to break nature into its elements—”

“I see—”

“So as to view it as the external structure of Society and make deductions from it.”

“Have you made any?” I asked.