"But——" I began, puzzled.

He was blushing—blushing like a young girl.

"I know," he said. "I feel a most awfully ass. The fact is, sir, I just moon over those things, lose myself in 'em, sort of. I don't know the first thing about 'em. Of course, there are bits here and there—engines and practical flying and all that—I know a bit about that—what I mean to say is, a fellow doesn't want to miss anything—it's hard to explain——"

On the contrary: it was not at all hard to explain. Simply, I had caught him day-dreaming. That vivid color still in his cheeks told me that I had stumbled on a privacy. A young girl approaching womanhood knows these soft oubliances, these shy yet hardy excursions of the spirit that lead nowhither and die of their own over-sweetness. It is love of which she dreams; and this was his equivalent. He just "mooned." It was not understanding—he "didn't want to miss anything." His was not a technician's, but a poet's nature. And caught unawares he blushed.

"Of course my real job would be one of these Expeditions," he mumbled.

I pursued him relentlessly. "Which Expeditions?"

"Well, between you and I, they've started work on several of them. In Africa and India and places. You see I'm awfully keen on Air-geography. If this dashed ankle of mine ever gives me a chance again, that is. Bobby always said that was my line of country. He was the chap for the technical end. Thought in surds, Bobby did. He put me on to all those Journals and things, and—after—well, I sort-of keep it up. He was your man for that."

"By Bobby do you mean your friend Maxwell?"

"Yes. Bobby," he replied, his eyes far out over the sea.