"My dear," I said, "I have been asked to deliver a lecture."
"Whatever on?" asked Celia.
"Anything I like. The last person lectured on 'The Minor Satellites of Jupiter,' and the one who comes after me is doing 'The Architecture of the Byzantine Period,' so I can take something in between."
"Like 'Frostbites,'" said Celia helpfully. "But I don't quite understand.
Where is it, and why?"
"The Blanktown Literary and Philosophical Society ask me to lecture to them at Blanktown. The man who was coming is ill."
"But why you particularly?"
"One comes down to me in the end," I said modestly.
"I expect it's because of my electric lights. Do they give you any money for it?"
"They ask me to name my fee."
"Then say a thousand pounds, and lecture on the need for more electric light. Fancy if I got six per cent!"